Description:1.304 stainless steel material, dual hook.2.Tension spring can be used on many occasions, such as production and assembly, experiment, research and development, maintenance, etc.3.Spring in the global market occupies an important position, are widely used, computer, electronics, , and other fields. Specification:Product Name: Tension SpringType: Dual hookFree Length:Spring Size( Outer Diameter):Wire Diameter:Main Material: 304 Stainless SteelHeat treatment: TemperingFinished: Polished Package Content: