MegaGear MG138 Camera Buckle Lens Cap Holder for 67, 58 and 52mm Lens Cap Sizes. Never lost lens cap! Easily attach to your camera&#39;s neck strap - does not require any modification to camera or lens cap Does not dangle or cause interfere with pictures, lens or camera Lightweight and Durable, The easiest and most secure way to hold your lens cap Compatible with the 52mm 58mm 67mm lens cap