This Wesco 480001 HeviMover machine roller has a 2,000-lb. capacity. It has hardened steel rollers for strength and durability. It has a rigid top plate that swivels 360 degrees, with a spring-loaded locking mechanism at 45-degree intervals. The rollers revolve around a center load bearing plate in the frame for eliminating axle friction. This HeviMover machine roller requires only light cleaning and oiling and measures 3-3/16 x 3-1/8 x 8 inches (H x W x D). (H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.) Wesco manufactures material handling equipment. The company, founded in 1948, is headquartered in North Wales, PA.