Stainless Steel Tension spring extension spring wire diameter d=0.2mm/0.3mm/0.4mm/0.5mm/0.6mm outer diameter=2mm/3mm/4mm/5mm/6mm/8mm length L=1000mm/39inch/3.28Ft Material is stainless steel with micro magnetism The product includes 5pcs flat head springs Clear texture, stable rebound performance, Widely used as a sheath or hanging a number plate Stainless steel tension spring, long tensile force, protective tube spring Brand WZHLCX Color Silver Pin Type Spring Size Name 0.4x3mm Item Weight 3.2 ounces Finish Types Textured Manufacturer wzhlcx Material Type Stainless Steel Item Dimensions 5 x 0.4 x 6 inches Number of Pieces 5