Hole Diameter (Outer Diameter): 20mm; Inner Diameter (Tolerance +0.5mm): 10mm; Free Length: 40mm (+/-2mm); Maximum Compression Rate: 40%; Maximum Load: 530N Color: Blue; Load Type: Light Load; Material: Spring Steel; Surface Treatment: Spray Paint Rectangular section, closed end design. Die springs are mainly used in die machinery equipment for plastic injection, 3D printers, and electrical components. Made of spring steel, the surface is painted blue, making it rust-resistant and durable. Package Contents: 5 x Compression Die Springs ----------------------------------------------- ❤️ Anonymous Shipping & Free Shipping ❤️ ⚠️ The photos cited from the internet are for illustrative purposes ⚠️ Please check the actual photos for the product condition ♪ • Although it is an unused item, it has been opened for actual photo shooting • Please understand that it is stored at home and will be shipped in simple packaging before purchasing # Click here for a list of products from Eri ❤️ Comment-free & Immediate Purchase OK⭐️ ✨☜ ----------------------------------------------- 1-21 2031