Lockable, Removable DrawersPress the blue handles on both sides simultaneously to lock and unlock the drawers, locking them when fully closed and locking them when fully open to prevent them from sliding out. Rustproof, Long Service LifeThe surface of the slide rail has been electroplated with blue zinc treatment to isolate the direct contact of water and air to prevent oxidation and rust of the slide rail and improve corrosion resistance. More than 100,000 times of opening and closing tests have been carried out to verify its durability, and the normal service life of the slide rail is more than 30 years. 3-Fold Full Extension & Removable Triple extension allows the slides to be fully extended, allowing the drawer to be fully pulled out for easy access to the entire drawer storage space. By pressing the locking handle and continuing to pull, the inner rails can be removed for easy installation and cleaning. Product Features The heavy-duty drawer slides are made of high-quality cold-rolled steel, high strength and high density. They can withstand heavy-duty storage without deformation. The bottom is equipped with a limited rubber bumper and ABS plastic for good wear resistance and impact resistance. Usage TipsThe length of the rail should be the length of the drawer. The metal parts are sharp during installation. It is recommended to wear gloves for installation. You can choose the size of the rails according to the depth of the drawer. We wish you a happy life.