This portable desk is portable and easy to assemble It is an invaluable study partner for learners, and a useful laptop accessory for mobile professionals It enables you to study and work in more comfortable positions, help you work more productively It can be store in small space, since all the legs can be folded down to become entirely flat When not being used, it can be stored under the sofa or bed or lean on the wall Clamps on the corners prevent laptop from sliding off the smooth surface when use Super-thin after compact, ultra-light, extra-strong, sturdy and handy The weight is only 0.58kg and easy to put into a notebook computer bag Big silent fan with blue LED and aluminum surface dissipate heat away from your laptop rapidly The cooler fan is powered by USB port Product specifications: Model: portable folding laptop desk with cooler pad Material: aluminum Leg's extended size up to: 52cm Folded size: 39 x 25.3 x 6.5cm Big fan: 20 x 20cm Control method: button, total 6 phases Product size: 36cm x 24cm Net weight: 0.58kg Possible angle: 30 to 160o Angle phase: total 30 phases Product scope: 25 to 36cm Color available: black, blue, silver, pink, and green