Trekking pole adapters allow you to attach The Evolution Bipod to appropriate trekking poles. This allows you to shoot offhand or standing position, In most cases when the trekking poles are attached to the leg pivots on the bipod. The Trekking pole adapters work with any trekking pole that has the 1/4"-20TPI stud on the top of the pole for camera/gopro attachment. There are two adapters in this kit. You will need a pair of trekking poles with studs to work as a standing length bipod. Most trekking poles collapse short enough to be used as a sitting length bipod. Trekking Poles Not included. Please email for a list of appropriate trekking pole reccomendations. $49.99