Thank you for viewing! * Immediate purchase is welcome, silent purchase at midnight is OK ◎ * Welcome to bulk purchases, feel free to comment * Free shipping! ・Please understand and purchase the product as it is stored at home and shipped in simple packaging (⁎ᵕᴗᵕ⁎) ・Reference photos are posted. Please check the actual photos for the condition of the product♪ ※To sell at a slightly lower price, depending on shipping costs 　The product may be shipped after being taken out of the box. ・Opened for inspection #☆Ami's product list☆ is here ↓《 Product Description 》 ※Quoted from Amazon Hole diameter (outer diameter): 18mm; Inner diameter (tolerance +0.5mm): 9mm; Free length: 20mm (+/-2mm); Maximum compression rate: 40%; Maximum load: 422N 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 mechanical equipment for plastic injection 3D printer electrical components. Made of spring steel, the surface is painted blue, rust-resistant and durable. Package contents: 1 x Compression die spring uxcell Die Spring Light Load Compression Die Spring for 3D Printer Electrical Components Screw Press 18mm Outer Diameter 20mm Length Blue 8-27 -35