Elevate the notebook computer, which is conducive to heat dissipation. Make the keyboard operation surface of the notebook computer have an inclined angle to relieve wrist fatigue. Increase the cooling space at the bottom of the notebook.Two ways to use1. Adsorb the suction cup surface to the bottom of the computer and press firmly.2. Open the small cover at the bottom of the foot pad, and attach the round hole surface to the bottom of the notebook.