Thank you for viewing! ❁ ⭐️ Many new and unused items available! ⭐️ Silent purchase and immediate purchase are welcome ❤️ ⭐️ First come, first served for one-of-a-kind items #chamList #RGList -------✧Product Description✧------- Hole diameter (outer diameter): 20 mm; Inner diameter (tolerance +0.5 mm): 11 mm; Free length: 150 mm (+/- 2 mm) Maximum compression rate: 32%; Color: Red; Load type: Medium load; Material: 65Mn Rectangular section, closed-end design. Die springs are mainly used in mold machinery equipment, plastic injection 3D printer electrical components. Made of 65Mn material, the surface is painted red, rust-resistant, and durable. Package contents: 2 x Compression die springs uxcell 3D printer die spring TM 20 mm outer diameter 150 mm length spiral stamping medium load compression mold die spring 3D printer electrical components red 2 pieces $88