Tree climbing spikes designed for efficient, reliable ascents. Constructed from strength steel and heathardened for improved durability and wear resistance, these climbers deliver secure footing with minimal bark damage. Each set includes a matched safety rope for an integrated climbing system ready for field use. Key benefits 150 kg (330 lbs) load capacity for robust support during work at height. Streamlined spike geometry and rubber pad placement for controlled penetration and stable contact with various wood types. Lightweight design reduces fatigue while maintaining strength for repeated professional use. Includes a strength safety rope to provide a coordinated climber and tether system. Ergonomic 5hole foot platform shaped to match foot anatomy for antislip stability and confident weight support. Quick, intuitive fitting minimizes setup time so you can focus on the job. Features Material: Steel, quenched for increased hardness and wear resistance. Optimized angle and rubber pad layout to reduce bark damage while maintaining grip. Fits a range of tree diameters and comfort preferences through multiple size options. Matches professional daily use demands while remaining suitable for experienced hobbyists. Specifications Loadbearing: 150 kg (330 lbs) Sizes and fit: Type250mm: Opening Diameter 1315 cm (56 in), Tree Diameter 1825 cm (79.8 in) Type300mm: Opening Diameter 1530 cm (612 in), Tree Diameter 2030 cm (7.811.8 in) Type350mm: Opening Diameter 1935 cm (714 in), Tree Diameter 2535 cm (9.813.7 in) Type400mm: Opening Diameter 2040 cm (816 in), Tree Diameter 2840 cm (1115.7 in) Type450mm: Opening Diameter 2345 cm (918 in), Tree Diameter 2845 cm (1117.7 in) Type500mm: Opening Diameter 2550 cm (1020 in), Tree Diameter 3050 cm (1219.6 in) Package contents 1 pair tree climbing spikes 1 pair foot straps 1 safety strap (matched strength rope) Practical applications Arboriculture: Routine pruning, branch removal, and tree inspection where secure footing and minimal bark damage matter. Hunting and wildlife observation: Quiet and stable climbing for tree stand access and elevated observation points. Outdoor work and maintenance: Towering property maintenance, fruit tree care, and other tasks requiring reliable ascent equipment. Usage and safety notes For experienced climbers only. This equipment assists climbing but does not required skills and training. Novices should practice on low trees to develop technique and confidence. Allowable manual measurement tolerance: 12 cm. Item colors in photos may vary slightly from the actual product due to lighting and display differences. Always inspect spikes, straps, and rope for wear before each use and follow established safe climbing practices. Choose the correct size for your tree and comfort to ensure a secure fit and efficient climbing performance.