POWERTEC 17000 Workbench Caster Kit (Pack of 4) Durable steel construction, easily move heavy workbench up to 400 lbs to desired location Mounting screws included for easy installation 4 Freely pivoting, 2-3/8 Inch diameter urethane casters Has a simple, innovative, and secure foot pedal mechanism Product Dimensions: 10 x 5 x 4.5 inches