Cynch-Lok™ was developed with help from real pole climbers and features effortless adjustment and “cynches” around the pole during a “cut-out.” Cynch-Lok™ meets CSA Z259.14 standards for Type A and AB (dry, wet and icy poles) and ASTM F887. Cynch-Lok™ allows you to easily hitch-hike poles (move or jump the strap upwards) with a hand position that’s comfortable. It also moves past obstacles without difficulty. Exterior straps can easily be swapped out in the field depending on pole size, eliminating the need for multiple systems. Capacity: 310 lbs. (141 kg) Brand: DBI-SALA® For transmission pole sizes 5.5" dia./17.5" circ. (14/45cm) minimum, 30.5" dia./96" circ. (77.5/244cm) maximum. Thread/Stitching: Polyester Exterior Strap: 6-Ply Nylon, Neoprene Impregnated Interior Strap: 1/2" (12.7mm) Polyester Technora® Kernmantle Rope Carabiner/Hook: Zinc Plated Steel Aduster and Cleat: Zinc Plated Steel Weight: 4.80 lbs (2.2kg) Product Type: Fall Restricting Device Standards: CSA Z259.14 Type A and B, ASTM F887-11, Capital Safety Gen. Mfg. Req. Cynch-Lok Instructions Cynch-Lok™ Pole Climbing Fall Arrest Device For Transmission Poles With Rope Lanyard 1204058