1) M42 Lens to M4/3 Lens Mount Stepping Ring

2) It is easy to install remove and use

3) It is durable and reliable for long-term use

4) It is made of metal

5) A useful thing to achieve optimal shooting effect

6) With lock pin and stop screw.

7) Please note Although the lens will fit physically automatic diaphragm auto-focusing or any other functions will not operate correctly while using this adapter.