Dual Hook Tension Spring 10 Pcs Small Extension Springs, Tension Springs, Extended Compressed Spring, Dual Hook Heavy Double Hook Tension Spring 80mm Performance: Spring surface polishing treatment, smooth and burr-free. Features: -Tension spring with hook, Wire diameter: 2.9mm, Outer diameter: 18mm, Static length: 80mm. -Made of premium stainless steel 304, not easy to rust and corrode, high strength and elasticity Max tensile length: 108mm. 80mm Stainless Steel Tension Spring, For Automobile Industry, Material Grade: SS304 at ₹ 4... Specification: Extension spring with hook, Wire diameter: 2., 5mm, Outer diameter: 20mm, Static length: 80mm. 304 Stainless Steel Extension Spring 80mm Heavy Duty Tension Spring Dual Hooks Rust Resistant 2pcs~p186405459 Widely Applications: Widely used in outdoor tents, trampolines, toys, fitness equipment, electrical appliances, automobiles and other fields.