About this articleFeatures:[Cushioned Zipper Drawer Slides] Safe and quiet, drawers close automatically and slowly to avoid pinching your fingers. [Quantity: 1 pair (set of 2) You can choose the size of the rails according to the depth of the drawer. *The length of the rails must be to the length of the drawer. Installation space: 12.5 mm (each)[Surface treatment by electrophoresis. The electrophoresis layer prevents air from directly touching the steel plates of the slides, which have been tested more than 100,000 times when opening and closing, they are durable and the normal life of the slides is more than 30 yearsRemovability and softness: There is a black plastic ring on the back of the slide, which can be easily removed by pressing the drawer, easy to install. Rubber bushings to avoid push and pull collisions during use, double rows of solid steel balls make the open drawer smoother and quieter. [Tips]: This product is made of metal, please protect your hands. It is recommended to wear gloves for installation. Specifications :Size: 4512 normal section three sections = 8" / 20cmName: Three-section buffer railField of application: drawers, cabinets, wardrobesMaterial: steelFabricationFlat surfaceColor: black List:1* drawer rail