Features With 150KG bearing capacity, used for carrying heavy objects such as furniture. The scroll wheel is smoothly and does not freeze one person also can move heavy objects. Small size, easy to carry and store, convenient to use and with good performance Easy to use and simple to operate, one person also can move heavy objects. Leverage principle, supporting heavy objects to increase friction, not easy to slip. Specification: Item Type: Furniture Transport Set Product Material: ABS Plastic, iron Bearing Weight: Approx. 150 kg / 330.7 lb Color: Yellow lifter and plate Moving Plate Size: Approx. 102 x 80 x 22mm / 4 x 3.1 x 0.9in Lifter Length: Approx. 325mm / 12.8in Package List: 1 x Lifter 4 x Moving Plate 1 x Spare Roller Package List 1 x Lifter 4 x Moving Plate 1 x Spare Roller