Specification Binding : Unknown Binding Brand : HUAREW Label : HUAREW Manufacturer : HUAREW MaterialType : Metal Model : HR-3DPDS-20 NumberOfItems : 20 PackageDimensions_Weight : 0.1102311310 PackageDimensions : L:2.83464566640 X W:2.04724409240 X H:0.62992125920 PartNumber : HR-3DPDS-20 ProductGroup : BISS Basic ProductTypeName : MECHANICAL_COMPONENTS Publisher : HUAREW SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/51o0Zw4pcML._SL75_.jpg SmallImage_Width : 75 Studio : HUAREW Title : HUAREW 3D Printer Die Spring 8mm OD 20mm Long Light Load Compression Mould Die Spring Yellow Compression Mould Die Spring for The Ender 3s Bed (Pack of 20 Pcs) Weight : 0.1 WeightUnit : pounds