Butler Creek Flip-Open Objective Scope Cover 1.53" / 38.9mm Size 13

Simply the ultimate scope lens protection for hunters and shooters. They'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. Please refer to the SIZE CHART below for the correct cover choice for you! Fast, flip-open design - keep your eye on the targetSilent spring hinges won't spook gameWater-tight, custom-fit friction mounts anchor them to your scopeAir-tight semi-O-ring keeps out dust and moistureTested to -40AdegFTruly ambidextrousWeigh less than an ounceManufacture Size: 13