Specification Amount : 15.39 Binding : Unknown Binding Brand : MroMax Color : 20mmx25mm(OD*L) CurrencyCode : USD Label : MroMax Manufacturer : MroMax MaterialType : Spring Steel Model : 20mm OD 25mm Long PackageDimensions_Weight : 0.09920801790 PackageDimensions : L:1.799999998164 X W:0.99999999898 X H:0.699999999286 PartNumber : MRO190906S-0120 ProductGroup : BISS Basic ProductTypeName : INDUSTRIAL_WHEELS Publisher : MroMax Size : 2PCS SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41vfKn16icL._SL75_.jpg SmallImage_Width : 75 Studio : MroMax Title : MroMax 3D Printer Die Spring 0.78" OD 0.98" Long Spring Steel Spiral Stamping Light Load Compression Mould Die Spring Blue 2Pcs 3D Printer Spring Bottom Connect Leveling Compatible with 3D Printer Bed Weight : 0.1 WeightUnit : pounds