"Wesco Rais-N-Rol movers transport large and bulky loads with ease. Hand-operated hydraulic jack for easy lifting and controlled lowering of loads. 6in. x 2in. steel swivel casters allow movement in any direction. Supplied with hooks for use with load binders. Sold as a pair. U.S.A. Roller Size in. 6 x 2, Rollers qty. 2 Each mover, Single, Pair, or Set Pair, Load Capacity lbs. 4,000, Max. Lift Height 12, Dimensions L x W x H in. 23 x 16 1/2 x 43 5/8 lowered, Hydraulic Yes, hand operated hydraulic jack, Includes Hooks for load binders. ID fork span range is 7 1/4in. to 19 1/2in."