Mounting VXB20082ALTB is the Low cost solution of making a project to move around by pushing or pulling. And rolling on wheel that has 82mm diameter/3.228" inch. Dimensions of the caster wheel is 82mm (3.228" inch). The caster dimensions heightwise is 48mm/1.890" inch. Mounted via a that has the size of 47 and the holes distance of 129mm x 74mm. The weehl core material is Zinc Alloy and Acrylonitrile Butadiene Styrene (Plastic) and has a Zinc Alloy and Acrylonitrile Butadiene Styrene (Plastic) tire with a low friction Roller bearing. Bearing in mind that every caster wheel has the load capacity of 99 lb with a Swivel and Upper Brake type. The caster temperature range = -40 to 180 F. Very important notice, you need to buy the VXB20082ALTB in order to get one :).