Label:Yes - High-Grade Material: All of the drawer slides are made from high-grade cold rolled steel that is electrom zinc plated.Rust resistant for your lifetime use.Side mounted Steel ball-bearing action.100 LB capacity. - Application range: Drawer slides are available in 10inch, 12inch,14inch,16inch,18inch,20inch.Various choices for drawers in your kitchen,bathroom,bedroom,office with different depth.It also can apply to ,keyboard drawers,wardrobe drawers,wooden or steel drawer,cabinet drawers,toolbox drawers that with demand for big load-bearing capacity. - Guide for Choosing Size of Drawer Slides: Side installation.To determine which size of slides are good for your drawer, please measure the length of the drawer without the frame board. And if the length is not even, please choose 1 inch shorter. The length of slides can't be longer than the cabinet case depth. Face frame cabinets will require a rear mounting bracket, whereas for faceless cabinets the slides are mounted directly on the side. - 3-Fold full extension & Detachable: There is a plastic buckle on the back of the slide rail, by pressing it,the 3rdtrack(the narrowest section) can be separated.Easy to take down and clean.At the same time,double anti-drop function would prevent drawer separate from cabinets.The 3-fold full extension allows for the entire drawer to be accessed.Three-stage stretching can pull out the drawer completely.Make full use of your drawer space. Specifications: Type:Drawer Slides Material: Steel Size: 10inch, 12inch,14inch,16inch,18inch,20inch Color:Black Package include :2*Drawer Slides,6*Screws Tips: 1.Due to the light and monitors effect, colors may have lightly difference. 2.Please allow slightly size errors due to manual measurement. Thank you for your understanding!