Omax - Comfylap Adjustable Laptop Table with Cooling Fans Portable Computer Desk Bed Tray Book Stand Multifuctional & Ergonomics design dual layer tabletop up to 17 3/4" Patented joint locking design to fit virtually angles and positions Silent built-in fans to cool your laptop on USB power Rubber slide-proof front edge to protect your laptop from scratching Made in aluminum alloy - ultra light and strong Easy storage and protability