diff --git a/convore/types.py b/convore/types.py
new file mode 100644
index 0000000..9a5bc10
--- /dev/null
+++ b/convore/types.py
@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+"""
+    convore.types
+    ~~~~~~~~~~~
+
+    This module contains he wrapper objects.
+
+    :copyright: (c) 2011 by Kenneth Reitz.
+    :license: ISC, see LICENSE for more details.
+"""
+
+class SyncedList(object):
+    """ Synced List datatype.
+
+    __data_keys__ are the list of 'primary keys' for item lookup.
+    self.get() needs to be defined.
+    self.sync() needs to be defined.
+    """
+
+    __data_keys__ = ['id']
+
+    def __init__(self):
+        self.data = []
+        if hasattr(self, 'sync'):
+            self.sync()
+
+
+    def __repr__(self):
+        return str(self.data)
+
+    def __getitem__(self, key):
+
+        if isinstance(key, int):
+            key = unicode(key)
+
+        for d in self.data:
+
+            if key in [getattr(d, g) for g in self.__data_keys__]:
+                return d
+
+        if hasattr(self, 'get'):
+            _fetched = self.get(key)
+            if _fetched:
+                self.data.append(_fetched)
+                return _fetched
+
+    def __iter__(self):
+        for d in self.data:
+            yield d
+
+    def __len__(self):
+        return len(self.data)
+
+
+    def __contains__(self, key):
+
+        if isinstance(key, int):
+            key = unicode(key)
+
+        for d in self.data:
+            if key in [getattr(d, g) for g in self.__data_keys__]:
+               return True
+
+        return False