Specification Amount : 72.48 Brand : SES CASTERS STANLEY E. SMITH COMPANY Color : Grey CurrencyCode : USD Label : SES Casters Manufacturer : SES Casters MaterialType : polyurethane Model : CR39C03SXKX.PPXGGPX NumberOfItems : 4 PackageDimensions_Weight : 6.20 PackageDimensions : L:9.00 X W:7.00 X H:5.00 PartNumber : CR39C03SXKX.PPXGGPX ProductGroup : BISS Basic ProductTypeName : INDUSTRIAL_CASTERS Publisher : SES Casters Size : 3x1-1/4" SmallImage_Height : 68 SmallImage_URL : https://m.media-amazon.com/images/I/41HUKZIaEwL._SL75_.jpg SmallImage_Width : 75 Studio : SES Casters Title : 3" Expandable Stem Caster Set | for 1" ID Tubing | Polyurethane Wheels | Fits Tube ID of 0.96" to 1.03" Weight : 6.2 WeightUnit : pounds