Tree Climbing Spikes Set, Height-Adjustable Tree Climbing Gear with Straps & Harness, 159 kg Load Capacity, Heavy Duty Steel Climb Spurs Arborist Equipment for Fruit Picking HuntingProduct Features High Strength Steel Frame Built with Q609D steel, the tree climbing spurs support up to 350 lbs. ASTM F887 tested for deformation, ensuring every climb is secure. Disclaimer: Not certified as fall protection equipment. For positioning utility use only; not intended as primary security rope. Complete Tree Climbing Kit The tree climbing spike set includes 1 security harness, 1 pair of climbing spikes, 1 pair of hook and loop straps, and