size：*Basic parameters of the product Size (length × width × height): Folding 17 × 6.5 × 2.2CM Open 27 × 18 × 2.2CM *The volume is very small, as long as you put it in a corner of the computer bag, you can carry it on a business trip. It can be folded without occupying space, and the style can be adjusted freely. * Stylish and lightweight design, stable operation, two 6cm fans, large air volume, can effectively help laptops "heat and heat" * This cooling pad is made of alloy material with high wear resistance and heat dissipation. It is not only beautiful, but also popular among consumers. * Two super cooling fans can effectively prevent your computer and CPU from overheating, making the computer performance more stable and easy to use. No special power adapter is needed. It can be directly powered by USB port, plug and play, and share USB port. * Four feet have anti-slip parts, so your love machine will not slip! * In order to protect the safety of the notebook, this cooling pad provides a rubber gasket with a high friction coefficient around it to ensure that the notebook will not be damaged by sliding. *Applicable to all kinds of laptops