Description: 【Material】: Laptop stand is made of pp and silicone material, the fan use at high speed while maintaining a quiet operation. 【Adjustable Settings】: The height of the laptop riser stand can be adjusted according to your preference, making it great for desktop use or as a bookstand for reading. 【Silicone Protection】: The contact surface is fitted with several silicone pads for slip-resistance and close fit, preventing scratches and providing comprehensive protection for your computer. 【Detachable Heat Sink】: The heat sink can be detached, significantly reducing the occupied space and making it more convenient to carry around. 【Hollow Heat Dissipation Design】: The hollow design allows for better ventilation and cooling of your device while in use, prevent overheating issues. Specification: Material: PP Silicone Size Chart: 25cmx5cm/9.84inchx1.97inch Package Includes: 1 Piece Laptop Stand 1 Piece Cooling Fan 1 Piece Storage Bag 1 Piece Instruction Manual Note: Please allow slightly errors 1-2cm differences due to manual measurement.