Product DescriptionButler Creek Flip-open Rifle Scope Cover Objective Size Number 11 TV View, 1.54 x 1.34 Inches (39.1 mm x 34 mm), 30110.
Watertight friction mount anchors cover securely to scope. With airtight semi-O ring to seal out dust and moisture. Spring activated lid pops open with touch of thumb. Weighs less than 1 oz.