1.The Unique design of multi-speed adjustment for the tilt scheduling of the notebook radiator, comfortable elevation design, soothes the cervical spine, and meets better environmental needs, four fans for heat dissipation, six-speed adjustment brackets, adjustable air volume, and the product design is light and easy to carry. 2.Material: ABS + Aluminum Alloy.Cooling Type: 4 Fans With Blue LED 3.Adjustable Stand,Anti-Slip,Foldable.MULTIFUNCTIONAL. It has 2 USB ports. Digital display design, convenient for you to adjust the speed.Four Height gear adjustable Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.