"Heavy-duty pneumatic tire spreader is easy to operate. Works on passenger, RV and truck tires up to 12in. wide. Dimensions L x W x H in. 24 x 24 x 41, Typical Application Passenger, RV, truck tires. Spreads and holds bead Handles tires up to 12in.W Sidewall adjustments Foot pedal operated Includes flex-arm light and utility tray Heavy-duty pneumatic cylinder with filter/regulator/lubricator"