UTG Clamp-on Sniper Bipod, Rubber Feet, Center Height 9"-11" Low-profile, foldable tactical bipod with adjustable height from 9 to 11 inches High tech durable aluminum construction Adjustment wheel for wide range of barrel sizes from 11 to 19 millimeters User-friendly spring operated, double-lock clamp Unique posi-lock feature to prevent tipping; stable rubberized comfort stand