Fully Stretched and SturdyThe drawn length of the drawer slides is equal to the closed length. Made from high quality cold rolled steel. Thickness: 1.2mm, twice the normal slider; Load: 45 kg (100 LB), which is 1.7 times more than a normal slider. 30 year lifespan, with testing, the drawer slides have been successfully opened and closed more than 100,000 times. Rust Resistant and DurableSurface electrophoretic treatment to prevent the direct contact with air and improve resistance to oxidation and corrosion. With rubber brakes at the end of the slide to prevent the slide from automatically opening, it can also reduce noise to 35 decibels for a more comfortable home experience. Drawer Slide Removable Ball BearingThe interior of the slide is designed with two sets of ball bearings, all made from solid steel balls. In addition to maintaining the smoothness of the slide, they can also effectively increase the load capacity of the slide. The back of the sliding rail is designed with a removable button that can be removed by pressing it for easy installation and cleaning of the drawer. Installation GuideInstallation gap: 1, 3cm