"Use this Northern Industrial Tools mover to transport the heaviest machinery and appliances, up to 12 tons Smooth movement improves work efficiency and safety. Single, Pair, or Set Single, Includes 360 rotation for maneuverability, Load Capacity lbs. 26,400, Base L x W in. 14 1/2 x 8 1/6, Roller Size in. 3 x 3, Dimensions L x W x H in. 20 x 8 1/4 x 4 3/8, Length in. 20, Compatible With Item Number s Northern item# 405708, Hydraulic No, Rollers qty. 8. 14 1/2in.L x 8 1/26 in.W platform with 6in. swivel attachment that rotates 360 Rolls on eight polyurethane-coated steel rollers Maintenance-free operation Small size for easy storage Sold as singles All-steel construction Durable powder-coat finish"