The ultimate objective lens protection for hunters and shooters, Flip-Open scope covers are custom fit to your scope, create a watertight, airtight seal, and open with a touch of your thumb, so you can put your shot through the narrow window of opportunity in the most extreme conditions. The fast, flip-open design with a silent hinge keeps your eye on the target and won't spook game. The Multi-Flex model features additional flex in the collars to fit a wider range of scopes.