【Double the Load】AOLISHENG drawer slides are made of high-quality 1mm cold-rolled steel, and the material is 1 time thicker than ordinary slides. Full extension drawer slides can support 100 lbs, 40 lbs more than ordinary slides. Double Rust Protection: The surface of the drawer slide is galvanized, which isolates direct contact between water and air, prevents the slide from oxidizing and rusting, and improves corrosion resistance. 【30-Year Lifespan】Two sets of plastic balls Solid steel is used inside the ball bearing slide to ensure smooth opening and closing of the slide. After testing, the number of smooth openings and closings of the slide has reached more than 100,000 times. Installation Guide: Length: 250mm, full extension length: 500mm. Left side mounting space: 12.6mm, right side mounting space: 12.6mm. There are 8 screws in the carton at both ends of the product. First, slide the inner ball bearing to the top of the slide and then connect it to the slide. There are electronic installation instructions at the bottom of the link. Concealed Feature: The back of the slide is designed with a detachable buckle, which is more convenient to install. The rear end of the slide is equipped with a rubber sound-damping pad, and the sound is as low as 35 decibels, providing a more comfortable home experience.