Adjustable vented laptop table desk portable bed tray book stand multifunctional and ergonomics design dual layer tabletop. Made with strong magnesium and aluminum alloy make this table a firm and durable one. The high quality bearings and high strength abs buttons enable this desk bears the weight of your notebook. Equipped with two USB cooling fans which provide strong air flow to dissipate the heat from bottom of your notebook. Not only a table but also a cooler. Each folding leg has 3 knobs which adjust different height to fit your need. The 360 revolve provides the high flexibility just as human. Convenient self-locking joints, you can just push down the buttons to adjust angle and height freely instead of spinning the bolts suitable for in outdoor use with folding design and portable dimension. 2*28cm adjustable height: 40-480mm folded dimension: 49*27*4cm unfolded dimension: 42*28*48cm net.