Product Name: 4-Wheel, folding hanging wheel Load capacity: 80 KG Suitable for door width: more than the 300 mm Suitable for door thickness: 30 mm-50 mm Adjustable height: 10 mm (with L-shaped hanging plate) colour:Silver Material:metal size:82.5x26mm Package Contents: 1 * Roller Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.