1、100% brand new and high quality. 2、Made of high quality material, it has large rigidity 3、Small body and it has good elasticity. 4、High accuracy and it has beautiful appearance 5、Widely used in stamping dies, metal die-casting dies, plastic molds and other elastic motion accuracy mechanical equipment, automotive fields, etc. Features: 1. 100% brand new and high quality 2. Made of high quality material, it has large rigidity 3. Small body and it has good elasticity. 4. High accuracy and it has beautiful appearance 5. Widely used in stamping dies, metal die-casting dies, plastic molds and other elastic motion accuracy mechanical equipment, automotive fields, etc. Specification: Condition: 100% Brand New Material: 65MN Steel Yellow (TF) Lighter load Free height *58% Optional Style: TF40*40mm, TF40*50mm, TF40*60mm, TF40*70mm, TF40*80mm, TF40*90mm, TF40*100mm, TF40*125mm Package List: 1 * Mold Spring Note: 1. Example of naming rules: TF40*40mm (yellow outer diameter: 40mm, length: 40mm) inner diameter is half of the outer diameter size, generally not marked 2. The surface is painted different colors to distinguish the compression ratio