1Parameter: The shortest length is 12in, can be extended to 22.83in, the left and right side clearance is 0.51in, and the length of the guide rail needs to be less than or equal to the drawer size. 2Premium Material: The slide rail is made of thickened cold rolled steel plate, which can withstand a maximum weight of 30KG, and is not easy to deform, making the drawer smooth to operate. 3Ball Bearing: Two sets of solid steel ball bearings are designed internally, to enhance smoothness, effectively increase the load carrying capacity of the drawer, and reduce noise. 4Unique Design: Concealed buttons on the back press for drawer installation, and adopts galvanized sealing process for enhanced oxidation and corrosion resistance. 5Application: Designed with multiple mounting holes, convenient for different positions installation, suitable for various drawers in RVs, yachts, and households.