Aolissheng Drawer Slide: : Aolissheng's fully extended drawer has passed the test of professional testing institutes. The opening and closing time of the slide exceeds more than 100,000 times, which is durable, and the normal life of the slides exceeds 30 years. Heavy-duty drawer slides: size: 400 mm, installation thickness: 12.7 mm (each), width: 50 mm, maximum load: 70 kg, total length: 81.3 cm, box contents: set of 2 (1 pair of rails) left and right. Mounting brackets and screws are not included. Removable and Fully Extendable Drawer Slides: There is a plastic buckle on the back of the inner rail, which can be removed by pressing and pulling. 3 folding slides, allowing the slides to fully extend, smooth and quiet, avoiding pushing and pulling collisions during use, reduce noise. Anti-rust and anti-corrosion: : It adopts high-quality electroplating and then blue plating, which has high anti-rust ability and is durable. Tip: Metal parts are sharp during installation. Please protect your hands. It is recommended to wear gloves for installation.