【Product Features】 Heavy-duty drawer slides are made of high-quality, high-strength, and high-density cold-rolled steel. They can withstand intensive storage without deformation. The underside is equipped with a limited rubber bumper and ABS plastic for good wear resistance and impact resistance. 【Anti-Rust, Long Lifespan】 The surface of the slide system has been galvanized with blue zinc treatment to isolate direct contact with water and air to prevent oxidation and rust on the slide and improve corrosion resistance. More than 100,000 opening and closing tests have been performed to verify its durability, and the normal lifespan of the slide is more than 30 years. 【Industrial Solid Steel Balls for Better Weight Support】 The slide system is designed with two sets of ball bearings inside, all made with solid steel balls. In addition to maintaining the slide's mobility, it effectively increases the slide's load capacity. Fully extendable drawer slides provide access to the entire space, and drawers can be fully pulled out for easy storage. 【3-Fold Full Extension Detachable】 Triple extension allows the slides to be fully pulled out, allowing the drawer to be fully pulled out for easy access to the entire drawer storage space. By pressing the drawer handle and continuing to pull, the inner slides can be removed for easy installation and cleaning. 【Usage Tips】 The length of the slide should be ≤ the length of the drawer. Metal parts are sharp during installation. It is recommended to wear gloves during installation.