Big metal mesh surface with one silent fan diameter 14 cm with Blue LED Lights,Make the heat dissipation perfect.special flow outlet design,keeping your notebook cool during use,and can be worked on desk or on bedSlim, light weight, allowing you to store it in your laptop Bag and take it with you whenever you gobuilt-in dual head USB hub for Laptop Cooling Pad can connect more USB devices. One is connected to the laptop for supply. The other connects additional USB devices, such as USB flash drives, keyboards, etc. and unique design,comfortable feeling,hold you and your notebook in an safe and comfortable situationsize: 330 x 250 x 25CMMaterial: wire mesh, plasticcolour: blackPackage Contents:1 x Laptop Cooling PadOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.