"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 2 1/2in. urethane swivel casters allow movement in any direction. Supplied with hooks for use with load binders. Sold as a pair. U.S.A. Dimensions L x W x H in. 23 x 16 1/2 x 41 3/8 lowered, Rollers qty. 2 Each mover, Roller Size in. 6 x 2 1/2, Hydraulic Yes, hand operated hydraulic jack, Load Capacity lbs. 6,000, Max. Lift Height 6, Includes Hooks for load binders, Single, Pair, or Set Pair. ID fork span range is 6in. to 19 1/2in."