How to Use:1. Make sure the p to be installed clean and smooth.2. Tear off the tape from the back, and push the tray on the under desk side.3. Keep preing all areas of the drawer for more than 30 seconds to make it stronger.4.Use after 24 hours of inactivityMaterial: ABS.Color: white, blackSize : S–20*11*3cmPackage Includes: 1 x Storage Box