No one equips you to make the shot in foul weather like Butler Creek. Our legendary Flip-Open Scope Covers form an airtight seal against the elements, but silently hinge out of the way at the push of a button. Theya; (TM)re the pinnacle of protection and rapid target acquisition. You can aim through our flip-open Blizzard Scope Covers if you need to take a snap shot. And we still make the rugged, affordable Bikini Covers trusted by generations. Simply the ultimate scope lens protection for hunters and shooters. Theya; (TM)re custom-fit to your scope, create a watertight, airtight seal, and open with a touch of your thumbs, so you can put your shot through the narrow window of opportunity in the most extreme conditions. Fast, flip-open design Silent spring hinges wona; (TM)t spook game Water-tight, custom-fit friction mounts Anchor them to your scope Air-tight semi-O-ring Keeps out dust and moisture Tested to a; "40A;AdegF Truly ambidextrous Weigh less than an ounce Also made for spotting scopes