uxcell 3D Printer Die Spring 18 mm Outer Diameter 75 mm Length Helical Stamping Compression Mold Die Spring for 3D Printer Electronic Components Green 1 Piece ✔ Immediate purchase without comment is welcome★ ✔ The reason for stating "Like New" is because it has been opened once for photography. The product itself is unused, so please rest assured★ ✔ We ship from home storage and with simple packaging (may be removed from the box or compressed)★ ✔️ Please check the actual photos for the condition of the product★ Hole Diameter (Outer Diameter): 18 mm; Inner Diameter (Tolerance +0.5 mm): 9 mm; Free Length: 75 mm Maximum Compression Rate: 24%; Color: Green; Load Type: Heavy Load; Material: 65Mn Rectangular cross-section, closed-end design. Die springs are mainly used in mold machinery equipment, plastic injection, and 3D printer electrical components. Made of 65Mn material, the surface is painted green, rust-resistant, and durable. Package Contents: 1 x Compression Die Spring 18-44