Flow Rail Skate Wheel Flow Rail Type Overall Length 5 ft Overall Width 5 1/4 in 3 in Overall Height 250 lb/ft (5 ft Supports) Maximum Load Capacity Wheels per Foot 16 Frame Material Steel Steel Skate Wheel Material 1 15/16 in Wheel Diameter Staggered Wheel Alignment 1 1/2 in Roller Spacing Light-Duty