Keep track of your lens caps with Sensei's StrapCap Keeper SCK-10 for 72mm, 77mm, 82mm Lens Caps. Fitting up to three different size lens caps, the StrapCap Keeper accepts both center-pinch and snap-on lens caps. It provides quick, easy access to lens caps as it easily and securely attaches to your neck straps, bag straps, and even belts up to 2" wide.