Premium Quality: Our durable full extension drawer slides are manufactured with heavy-duty cold-rolled steel. Its high-grade Zinc plating prevents rust and corrosion. The Solid ball bearings provide smooth and silent movement with an Auto locking feature that keeps your drawer from falling off the track. Full Extension Design: 3-Fold Full Extension opening allows access for the entire drawer space. The Plastic lever on the third channel makes it easy to mount and remove the whole drawer unit. Noiseless: The Solid ball bearing drawer slides ensure smooth and noise free gliding of the drawers without getting stuck or applying any excessive force while opening or closing. Versatile: These full extension drawer slides hardware are great to use on kitchen drawers, bathroom drawers, office furniture, general storage drawers, store fixtures and any type of cabinetry in both residential and commercial. Perfect for newly constructed, remodeling or replacement projects; required space 1" (Left 0.5", Right 0.5"). Easy to Install: Our slides come with mounting screws and easy to follow instruction manuals. ** For face frame applications, rear mounting sockets are required (Sold separately)** You can contact us at any time if you have any question or suggestion, we will be more than happy to assist. Hope you have a happy shopping. Keep your drawers easy to open and simplify your bathroom or kitchen setup with these sliding drawer rails. This sliding drawer hardware gives your drawers smooth and silent movement when opening and closing, and are a perfect addition to kitchen drawers, bathroom drawers, office furniture, and store fixtures. Constructed with high quality cold-rolled steel and featuring a galvanized steel finish for a refined appearance, these drawer slide rails are intended for use with face frame and frameless cabinets, and the drawer slide parts work well in both residential and commercial settings.