It adopts high-quality spring steel, which has large elasticity, fatigue resistance, strong plasticity and good resilience.The open hook design is easy to use. This product is forged in multiple processes, strictly controlling each production process, and the surface gloss is free of burrs. High plasticity, uniform spacing, uniform force, stable resilience, and effectively improve work efficiency. Wire Diameter: 1mm;Outer Diameter: 7mm;Length: 20mm-60mm Size: Wire Diameter x Outer Diameter x Length