Specification Material Type: Alloy Steel, PU, Rubber The Max Load: 15T (33,000lbs / 1468.8kg) Normal Load: 7T (15,400lbs / 6985.4kg) Rollers Quantity: 9 Roller Size: 8 x 7cm (3.14 x 2.75inch) Product Size: 37269.5cm/14.5710.243.74inch Package Size: 40 x 31.3 x 11cm (15.75 x 12.32 x 4.33inch) Product Weight: 20.2kg /44.53lbs Color: Yellow Package Included 1 x Machinery Mover.