This sale is for a brand new Mamiya 645AF 58mm Lens Cap, suitable for use with all 645AF series and Phase One lenses with a 58mm filter ring – or also with any other 58mm fitting lenses.
This is the proper Mamiya lens cap, not a cheap Indian clone. Comes in its original packaging. Mamiya part numbers # 4957672051174, 314034. Try finding another one – these are almost impossible to find.