Four-level degree adjustment is designed for you and you can choose according to your different needs.What this product can offer you include rapid heat dissipation, which is supported by its silent and efficient fans. What is more, it will not disturb your work.This stand is made of ABS and metal material. This laptop cooling pad is stable and reliable.The length of the product is 34.5cm, the width is 24.5cm, the height is 3.4cm. The length of the fan is 14cm, the width is 14cm, the height is 1.5cm.It is compatible with notebooks below 15 inches. It is durable, stable, lightweight and sturdy in performance.Item Name: Laptop Cooling PadMaterial: ABS,MetalNumber of Fan: 2Rated Voltage: DC 5VRated Power: 3WFan Speed: 1000±10 Percent RPMAir Volume: 115CFMCooling Method: Air CoolingNoise: 21dB(A)Degree Adjustment: Four-levelCompatible Products: Notebooks Below 15 InchesFeatures: Lightweight, Sturdy, Two-level AdjustmentSize Details: Laptop Cooling Pad Size: 34.5cm x 24.5cm x 3.4cm/13.58" x 9.65" x 1.34" (Approx.)Fan Size: 14cm x 14cm x 1.5cm/5.51" x 5.51" x 0.59" (Approx.)Notes: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.Package Includes:1 x Laptop Cooling Pad (Laptop Not Included)1 x Data Cable