Seco 5217-40 thumb-release prism pole bipod accommodate range poles up to 1-1/4" in diameter so you can clamp the pole into place without lifting and threading it through the bipod head. Then you can set up a free-standing GPS rover rod or prism pole. Thumb release lock design allows locking tensions to be adjusted without disassembling the legs. Aluminum construction, electrostatically powder-painted finish. Legs extend to 72" for use in rugged, uneven terrain and collapses to 43" for easy transport and storage. Bipod leg clip attaches to the base of your prism bipod. Bipod legs snap into the clip to enable convenient transport or storage. Storage/carrying case included.