, Steel Conveyor Roller Material, 16 ga Roller Gauge, Medium-Duty, 360 lb Roller Load Capacity, Hex Axle Shape, 7/16 in Axle Size, Motorized No, High Performance Roller Performance.Replacement Roller, 31 in For Between Frame Width, 32 5/16 in Overall Width, 1 15/16 in Roller Dia.