Specification Amount : 12.19 Binding : Unknown Binding Brand : MroMax Color : 20mmx65mm(od*l) CurrencyCode : USD Label : MroMax Manufacturer : MroMax MaterialType : Spring Steel Model : 20mm OD 65mm Long NumberOfItems : 1 PackageDimensions_Weight : 0.11464037624 PackageDimensions : L:4.4094488144 X W:2.5590551155 X H:0.7480314953 PartNumber : 1 ProductGroup : BISS Basic ProductTypeName : INDUSTRIAL_WHEELS Publisher : MroMax Size : 1PCS SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41prIaorSqL._SL75_.jpg SmallImage_Width : 75 Studio : MroMax Title : MroMax 3D Printer Die Spring 0.78" OD 2.56" Long Spring Steel Spiral Stamping Light Load Compression Mould Die Spring Blue 1Pcs 3D Printer Spring Bottom Connect Leveling Compatible with 3D Printer Bed Weight : 0.1 WeightUnit : pounds