Rifle Bipod 9 - 13 Inch Adjustable Spring Return Sniper Hunting Sling Rifle Bipod with 20mm Picatinny Mount Adapter 9 Leg Notch Settings with Release Button to adjust Leg Length from 9 to 13 Inch Rubber Padding Shockproof Design makes Rifle Bipod shockproof Spring Sling Tension Control makes Bi-pod Legs Foldable Swivel Stud to Attach / Detach the Rifle Bipod Quickly Light Weight Rifle Bipod is Portable with its Aluminum Steel Alloy Construction.