... 2.Smooth Rolling Mechanism 3.Tool free front assembly Standard Drawer Box Slide Performance of the product :Basic length: 270, ... 300, 350,400, 450, 500, 550, 600mmThe drawer width designed freely with automatic adjustmentFast installation and disassembly, three ... built-in damping without future installation. Ensure that the drawer is closed softly, smoothly and stably Advantages for the ...