Double rows of flexible rolling steel ball bearing slides that are ensure smooth and quiet performance, featuring functionality to close any drawer softly and silently. Rubber cushion can avoid pushing and pulling collision and reduce noise. The 3 folds full extension enable the slides to fully extend, which designed to extend your drawer to a full open position so that you can access anything in the drawer without reaching under the lip of your cabinet. Detachable:There is a plastic buckle on the back of the slide rail, by pressing it,the 3rd track(the narrowest section) can be separated ,which means the drawer can be installed and detached easily by your will. The 20 inch full extension drawer slides are made of high grade cold-rolled steel with zinc plated finish, rust proof and wear-resistant, durable, and bearing capacity up to 99 pounds (45KG),can serve you many years. These heavy-duty drawer slides are ideal for kitchen cabinets, toolboxes and storage units. Even heavier drawers operate smoothly, ensuring reliability for everyday use. They offer the flexibility to improve organisation and maximise space in any room., Manufacturer: KFGISD