Aurosports Hunting Tactical Rifle Bipod with Picatinny and Swivel Stud Mounts Heavy-duty metal & aluminum construction to meet harshest requirements. Adjustable height & foldable arms with spring tension [Height Adjustable Range: 6 to 9 inches]. [Upgraded]Clever dual mounting - Picatinny mount and swivel stud mount. [Upgraded]Supported by lockable thumb wheel for fine and precision adjustment. Unique non-slip rubberized foot pads for any terrain or surface.