Machine Roller Kit, Load Capacity 80,000 lb, For Surface Type Any Surface, For Movement Type Swivel/Rigid, Top Plate Length 5 7/8 in, Top Plate Width 5 7/8 in, Top Plate Surface Rubber Padded, Top Plate Type Swivel with Lock, Frame Material Steel, Number of Decks 1, Overall Length 58 1/2 in, Overall Width 5 7/8 in, Overall Height 5 1/4 in