diff --git a/index.js b/index.js
index 78697bdd..c8f23922 100644
--- a/index.js
+++ b/index.js
@@ -36,7 +36,7 @@ const connect = async function connect(opts) {
   return realm;
 };
 
-Object.assign(Realm.prototype, migrations, { DataTypes });
+Object.assign(Realm.prototype, migrations);
 Object.assign(Realm, {
   connect,
   Bone,
diff --git a/src/data_types.js b/src/data_types.js
index ca10063a..b3ecef60 100644
--- a/src/data_types.js
+++ b/src/data_types.js
@@ -14,7 +14,13 @@ const Raw = require('./raw');
 
 class DataType {
   static findType(columnType) {
-    const { STRING, TEXT, DATE, DATEONLY, INTEGER, BIGINT, BOOLEAN, BINARY, VARBINARY, BLOB } = this;
+    const {
+      STRING, TEXT,
+      DATE, DATEONLY,
+      TINYINT, SMALLINT, MEDIUMINT, INTEGER, BIGINT,
+      BOOLEAN,
+      BINARY, VARBINARY, BLOB,
+    } = this;
     const [ , dataType, appendix ] = columnType.match(/(\w+)(?:\((\d+)\))?/);
     const length = appendix && parseInt(appendix, 10);
 
@@ -39,10 +45,13 @@ class DataType {
       case 'int':
       case 'integer':
       case 'numeric':
+        return new INTEGER(length);
       case 'mediumint':
+        return new MEDIUMINT(length);
       case 'smallint':
+        return new SMALLINT(length);
       case 'tinyint':
-        return new INTEGER(length);
+        return new TINYINT(length);
       case 'bigint':
         return new BIGINT(length);
       case 'boolean':
@@ -203,12 +212,58 @@ class INTEGER extends DataType {
   }
 }
 
+/**
+ * 8 bit integer
+ * @example
+ * TINYINT
+ * TINYINT.UNSIGNED
+ * TINYINT(1)
+ * @param {number} length
+ */
+class TINYINT extends INTEGER {
+  constructor(length) {
+    super(length);
+    this.dataType = 'tinyint';
+  }
+}
+
+/**
+ * 16 bit integer
+ * @example
+ * SMALLINT
+ * SMALLINT.UNSIGNED
+ * SMALLINT(2)
+ * @param {number} length
+ */
+class SMALLINT extends INTEGER {
+  constructor(length) {
+    super(length);
+    this.dataType = 'smallint';
+  }
+}
+
+/**
+ * 24 bit integer
+ * @example
+ * MEDIUMINT
+ * MEDIUMINT.UNSIGNED
+ * MEDIUMINT(3)
+ * @param {number} length
+ */
+class MEDIUMINT extends INTEGER {
+  constructor(length) {
+    super(length);
+    this.dataType = 'mediumint';
+  }
+}
+
+
 /**
  * 64 bit integer
  * @example
  * BIGINT
  * BIGINT.UNSIGNED
- * BIGINT(10)
+ * BIGINT(8)
  * @param {number} length
  */
 class BIGINT extends INTEGER {
@@ -422,6 +477,9 @@ class JSONB extends JSON {
 
 const DataTypes = {
   STRING,
+  TINYINT,
+  SMALLINT,
+  MEDIUMINT,
   INTEGER,
   BIGINT,
   DATE,
diff --git a/src/drivers/abstract/attribute.js b/src/drivers/abstract/attribute.js
index 18fde7fe..18dd95b8 100644
--- a/src/drivers/abstract/attribute.js
+++ b/src/drivers/abstract/attribute.js
@@ -65,6 +65,14 @@ function createType(DataTypes, params) {
   switch (type.constructor.name) {
     case 'DATE':
       return new DataType(type.precision, type.timezone);
+    case 'TINYINT':
+    case 'SMALLINT':
+    case 'MEDIUMINT':
+    case 'INTEGER':
+    case 'BIGINT':
+    case 'BINARY':
+    case 'VARBINARY':
+      return new DataType(type.length);
     default:
       return new DataType();
   }
diff --git a/src/drivers/postgres/data_types.js b/src/drivers/postgres/data_types.js
index 19dd6e7e..9d9beec0 100644
--- a/src/drivers/postgres/data_types.js
+++ b/src/drivers/postgres/data_types.js
@@ -61,12 +61,22 @@ class Postgres_BIGINT extends Postgres_INTEGER {
   }
 }
 
+class Postgres_SMALLINT extends Postgres_INTEGER {
+  constructor() {
+    super();
+    this.dataType = 'smallint';
+  }
+}
+
 class Postgres_DataTypes extends DataTypes {
   static DATE = Postgres_DATE;
   static JSONB = Postgres_JSONB;
   static BINARY = Postgres_BINARY;
   static VARBINARY = Postgres_BINARY;
   static BLOB = Postgres_BINARY;
+  static TINYINT = Postgres_SMALLINT;
+  static SMALLINT = Postgres_SMALLINT;
+  static MEDIUMINT = Postgres_INTEGER;
   static INTEGER = Postgres_INTEGER;
   static BIGINT =  Postgres_BIGINT;
 }
diff --git a/src/realm.js b/src/realm.js
index d32df32c..809fc289 100644
--- a/src/realm.js
+++ b/src/realm.js
@@ -129,6 +129,11 @@ class Realm {
     this.options = Spine.options = options;
   }
 
+  get DataTypes() {
+    if (!this.driver) throw new Error('database not connected yet');
+    return this.driver.DataTypes;
+  }
+
   define(name, attributes, opts = {}, descriptors = {}) {
     const Model = class extends this.Bone {
       static name = name;
diff --git a/test/unit/bone.test.js b/test/unit/bone.test.js
index a2a7b2ef..639b94a7 100644
--- a/test/unit/bone.test.js
+++ b/test/unit/bone.test.js
@@ -4,7 +4,11 @@ const assert = require('assert').strict;
 const { Bone, DataTypes, connect } = require('../..');
 const expect = require('expect.js');
 
-const { BIGINT, STRING, DATE } = DataTypes;
+const {
+  TINYINT, MEDIUMINT, BIGINT,
+  STRING,
+  DATE,
+} = DataTypes;
 
 describe('=> Bone', function() {
   before(async function() {
@@ -312,4 +316,20 @@ describe('=> Bone', function() {
       expect(note.updatedAt).to.be.a(Date);
     });
   });
+
+  describe('=> Bone.sync()', function() {
+    it('should allow specific types such as TINYINT', async function() {
+      class Note extends Bone {
+        static attributes = {
+          isPrivate: TINYINT(1),
+          wordCount: MEDIUMINT,
+        }
+      }
+      await Note.sync({ force: true });
+      const result = await Note.describe();
+      assert.equal(result.is_private.columnType, 'tinyint(1)');
+      // MySQL 5.x returns column type with length regardless specified or not
+      assert.ok(result.word_count.columnType.startsWith('mediumint'));
+    });
+  });
 });
diff --git a/test/unit/data_types.test.js b/test/unit/data_types.test.js
index 73bc5d93..e08d3b76 100644
--- a/test/unit/data_types.test.js
+++ b/test/unit/data_types.test.js
@@ -7,11 +7,14 @@ const Raw = require('../../src/raw');
 const Postgres_DataTypes = require('../../src/drivers/postgres/data_types');
 const SQLite_DataTypes = require('../../src/drivers/sqlite/data_types');
 
-
-
 describe('=> Data Types', () => {
   const {
-    STRING, BOOLEAN, DATE, DATEONLY, INTEGER, BIGINT, TEXT, JSON, JSONB, BLOB, BINARY, VARBINARY,
+    STRING, TEXT,
+    BOOLEAN,
+    DATE, DATEONLY,
+    TINYINT, SMALLINT, MEDIUMINT, INTEGER, BIGINT,
+    JSON, JSONB,
+    BLOB, BINARY, VARBINARY,
   } = DataTypes;
 
   it('STRING', () => {
@@ -41,6 +44,27 @@ describe('=> Data Types', () => {
     assert.equal(new DATEONLY().toSqlString(), 'DATE');
   });
 
+  it('TINYINT', () => {
+    assert.equal(new TINYINT().dataType, 'tinyint');
+    assert.equal(new TINYINT(1).toSqlString(), 'TINYINT(1)');
+    assert.equal(new TINYINT().UNSIGNED.toSqlString(), 'TINYINT UNSIGNED');
+    assert.equal(new TINYINT().UNSIGNED.ZEROFILL.toSqlString(), 'TINYINT UNSIGNED ZEROFILL');
+  });
+
+  it('SMALLINT', () => {
+    assert.equal(new SMALLINT().dataType, 'smallint');
+    assert.equal(new SMALLINT(1).toSqlString(), 'SMALLINT(1)');
+    assert.equal(new SMALLINT().UNSIGNED.toSqlString(), 'SMALLINT UNSIGNED');
+    assert.equal(new SMALLINT().UNSIGNED.ZEROFILL.toSqlString(), 'SMALLINT UNSIGNED ZEROFILL');
+  });
+
+  it('MEDIUMINT', () => {
+    assert.equal(new MEDIUMINT().dataType, 'mediumint');
+    assert.equal(new MEDIUMINT(1).toSqlString(), 'MEDIUMINT(1)');
+    assert.equal(new MEDIUMINT().UNSIGNED.toSqlString(), 'MEDIUMINT UNSIGNED');
+    assert.equal(new MEDIUMINT().UNSIGNED.ZEROFILL.toSqlString(), 'MEDIUMINT UNSIGNED ZEROFILL');
+  });
+
   it('INTEGER', () => {
     assert.equal(new INTEGER().dataType, 'integer');
     assert.equal(new INTEGER(10).toSqlString(), 'INTEGER(10)');
@@ -103,7 +127,7 @@ describe('=> DataTypes type casting', function() {
     await assert.rejects(async () => {
       new INTEGER().uncast('yes?');
     }, /Error: invalid integer: yes?/);
-  
+
     assert.equal(new INTEGER().uncast('yes?', false), 'yes?');
 
   });
@@ -240,6 +264,15 @@ describe('=> DataTypes.findType()', () => {
     assert.equal(DataTypes.findType('mediumblob').toSqlString(), 'MEDIUMBLOB');
   });
 
+  it('integer => INTEGER', () => {
+    const { TINYINT, SMALLINT, MEDIUMINT, INTEGER } = DataTypes;
+    assert.ok(DataTypes.findType('tinyint') instanceof TINYINT);
+    assert.ok(DataTypes.findType('smallint') instanceof SMALLINT);
+    assert.ok(DataTypes.findType('mediumint') instanceof MEDIUMINT);
+    assert.ok(DataTypes.findType('integer') instanceof INTEGER);
+    assert.equal(DataTypes.findType('bigint').toSqlString(), 'BIGINT');
+  });
+
   it('unknown type', async () => {
     await assert.rejects(async () => DataTypes.findType('error'), /Unexpected data type error/);
   });
diff --git a/test/unit/drivers/postgres/data_types.test.js b/test/unit/drivers/postgres/data_types.test.js
index dff55e46..20169365 100644
--- a/test/unit/drivers/postgres/data_types.test.js
+++ b/test/unit/drivers/postgres/data_types.test.js
@@ -5,7 +5,11 @@ const DataTypes = require('../../../../src/drivers/postgres/data_types');
 
 describe('=> Data Types', () => {
   const {
-    STRING, DATE, JSONB, VARBINARY, BINARY, BLOB
+    STRING,
+    DATE,
+    JSONB,
+    VARBINARY, BINARY, BLOB,
+    TINYINT, SMALLINT, MEDIUMINT, INTEGER,
   } = DataTypes;
 
   it('STRING', () => {
@@ -35,5 +39,12 @@ describe('=> Data Types', () => {
     assert.equal(new JSONB().dataType, 'jsonb');
     assert.equal(new JSONB().toSqlString(), 'JSONB');
   });
+
+  it('INTEGER', () => {
+    assert.equal(new TINYINT().toSqlString(), 'SMALLINT');
+    assert.equal(new SMALLINT().toSqlString(), 'SMALLINT');
+    assert.equal(new MEDIUMINT().toSqlString(), 'INTEGER');
+    assert.equal(new INTEGER().toSqlString(), 'INTEGER');
+  });
 });