SHUHANG 3 Folds Full Extension Heavy Duty Drawer Runners With Lock. ?Product detail description? Length Specification?Height:53mm, Width?19mm±0.3mm Maximum Load capacity: 100kg Load.(1 pair) Material: High quality cold rolled steel. Material thickness:2.0mm Installation method: Side mount Attention: the mounting brackets and screws are not included. Scope of application?Goods shelf, Cabinets, Industry used drawer, RV, Truck, Vending machine, etc. ?Product advantages? 1.Two-way locking function?The drawer can be opened or closed by pressing the handle, and it will be locked when fully expanded or closed. 2. Metal Steel Ball Bearing??6mm high density of solid steel balls?Loaded and pulled more than 100,000 times, quiet and smooth, long-lasting use. 3. Full Extension ?The fully expanded length is twice that of the closed state. When you open the drawer, the drawer can be more perfectly presented in front of you. 4. Separable design?which can be separated by pressing down and pulling out.