BRAUN Professional Objektivdeckel 37 mm

The center-clip snaps on so cleanly that I don't even think about it until I hear that satisfying click. Fits perfectly over the 37mm thread and has kept my glass dust-free through a few windy hikes.

Fits perfectly on my 37mm filter threads and the center-clip snaps on securely without any wobble. The elastic cord is a nice touch so I don't worry about dropping it while switching lenses.

The center-clip makes it way easier to pop on and off than the screw-on caps I've used, and it holds tight on my 37mm filter. Only thing is the elastic tether feels a bit flimsy, but for the price it does the job of keeping dust off the lens.