Specification Amount : 16.09 Binding : Unknown Binding Brand : MroMax Color : 20mmx150mm(od*l) CurrencyCode : USD Label : MroMax Manufacturer : MroMax MaterialType : Spring Steel Model : 20mm OD 150mm Long NumberOfItems : 1 PackageDimensions_Weight : 0.2579408465400000440924524 PackageDimensions : L:6.4566929068 X W:4.2519684996 X H:0.9448818888 PartNumber : 1 ProductGroup : BISS Basic ProductTypeName : INDUSTRIAL_WHEELS Publisher : MroMax Size : 1PCS SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31JHqgprCZL._SL75_.jpg SmallImage_Width : 75 Studio : MroMax Title : MroMax 3D Printer Die Spring 0.78" OD 5.91" 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 : 0.3 WeightUnit : pounds