This sale is for a near mint condition cover for the battery compartment on the Mamiya 645 Pro and ProTL bodies. Ideal replacement if you have lost yours!
This cover protects the battery compartment. This one has just one very light scuff; the catch works perfectly.
Try finding another one – very hard to find. The Pro cover will fit the Super camera, but the profile/shape is more rounded than the more angular Super cover. Ditto, the Super cover will also fit the Pro/ProTL cameras, just a slightly different shape.