Durable and Reliable Tree Climbing Spikes. Experience secure and reliable tree climbing with our durable climbing spurs, crafted from high-quality Q609D steel and tested to meet ASTM-F887 standards. Designed to support up to 350 lbs., these spurs offer stability and safety during your climb. The comprehensive set comes with a harness, climbing spikes, adjustable hook-and-loop straps, and a utility rope for enhanced protection. Featuring soft EVA padding and ergonomically designed thigh plates, it ensures comfort during prolonged use, while the forged, heat-treated spikes provide strong traction on tree surfaces. Durable Steel Construction, Comprehensive Equipment Set for Tree Climbing, Designed for a snug and cozy experience, Robust and Long-Lasting Spikes, Customizable Height.