Rear Lens Cap For Mamiya Sekor C 50mm f4.5 Rubber
This lens Cap is 3d printed, there are some marks do to the 3d printing process. The material use is TPU, it's a rubber type called thermoplastic Polyurethane. It's a high quality material made in Italy with excellent mechanical property and temperature resistance. With normal use it is going to last a lifetime.
The lens in the picture is for demonstration only.
For any question please contact me.