Description: Please note: the caliber size is the internal size of the cover, also is for the external diameter of the scope, before you buy it, you need to measure the diameter of your scope. Please note cover is sold in single. Color: Transparent Material: Plastic. Flip-open design. Protect your scope lens from scratches or dust. Caliber: 28 difference size for you choose: 30MM,37MM,38MM,39MM,40MM,41MM,42MM,43MM,44MM,45MM,46MM,47MM,48MM,49.5MM,50MM,51MM,53MM,57MM,58MM,59MM,60MM,61MM,62MM,64MM,65MM,66MM,67MM,69MM Package included: Lens Cover x 1 pcs