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Four heavy-duty casters. 1,500 lb. capacity per unit. Hydraulic lift mechanism with locking pin. Fits tread widths up to 12". Sold in sets of four. The Easy Roller provides a technician with a simple and efficient method of moving a disabled vehicle around a shop environment. Just position an Easy Roller at each wheel of a vehicle weighing up to 6,000 lbs and then use the foot pedals to activate the hydraulic lift mechanisms. Within minutes, one individual can easily move the car throughout the garage. The Easy Roller fits tread widths up to 12" and the four heavy-duty casters can support up to 1,500 lbs. per unit while, at the same time, protecting the shop floor from damage.