The installation steps of nail desk are as follows:
1. Pull the small plastic piece (usually black) in the middle of the slide rail to one side to separate the slide rail into two parts.
2. Attach the part without the ball (with the small plastic sheet) to the drawer with wood screws (pay attention to the direction).
3. Put the part with the ball (with the slide rail) on the table with wood screws (pay attention to the direction).
4. Pull the small plastic piece (usually black) in the middle of the drawer slide to one side, and push the drawer in.