9-13 inch Heavy Duty Notched Legs Solid Base Bipod Pivoting with Pod-Lock for Swivel Style Hunting Shooting Bipod Designed for real fire caliber, no collapse, Swivel style from side to side by Pivot Leg Mounts onto rifles with sling stud or with picatinny rail via adapter (sold seperately, search B012ZQSWYC, Add Both To Cart, it'll save 8%) High quality aluminum alloy in durable black matte finish, Rubber feet avoid slip, top rubber covered avoid scratch your caliber Easy to use, sturdy construction with lock screw, frame crossbar Pod Lock replaces the thumbnut on pivoting bipods to make locking them down easier