diff --git a/src/bsr/__init__.py b/src/bsr/__init__.py
index 4b160c4..d42be1e 100644
--- a/src/bsr/__init__.py
+++ b/src/bsr/__init__.py
@@ -16,7 +16,8 @@
 )
 from .camera import CameraManager
 from .frame import FrameManager
-from .geometry.composite.rod import Rod
+from .geometry.composite.pose import Pose
+from .geometry.composite.rod import Rod, RodWithBox, RodWithCylinder
 from .geometry.composite.stack import RodStack, create_rod_collection
 from .geometry.primitives.simple import Cylinder, Sphere
 from .viewport import find_area, set_view_distance
diff --git a/src/bsr/geometry/composite/stack.py b/src/bsr/geometry/composite/stack.py
index e7dd216..ac2b82c 100644
--- a/src/bsr/geometry/composite/stack.py
+++ b/src/bsr/geometry/composite/stack.py
@@ -1,7 +1,13 @@
 __all__ = ["BaseStack", "RodStack", "create_rod_collection"]
 
 from typing import TYPE_CHECKING, Any, Protocol, Type, overload
-from typing_extensions import Self
+import sys
+
+# Check python version
+if sys.version_info < (3, 11):
+    from typing_extensions import Self
+else:
+    from typing import Self
 
 from collections.abc import Sequence
 
diff --git a/src/bsr/geometry/protocol.py b/src/bsr/geometry/protocol.py
index 7c330a0..4ac3069 100644
--- a/src/bsr/geometry/protocol.py
+++ b/src/bsr/geometry/protocol.py
@@ -13,7 +13,13 @@
     TypeAlias,
     TypeVar,
 )
-from typing_extensions import Self
+import sys
+
+# Check python version
+if sys.version_info < (3, 11):
+    from typing_extensions import Self
+else:
+    from typing import Self
 
 from abc import ABC, abstractmethod