This is the camera strap for the m645 and 645 Super, Pro, and Pro TL. It is the only one that works with the Super and Pro with the power winder attached. The Mamiya quick release strap system is very well designed. It goes on and off very easily yet holds securely. This strap is a handsome black nylon. It is in good condition with moderate wear and works perfectly. The white logo on the strap is gone but has left a light shadow.