Laptop desk 301 This improved mobile model is a new style laptop desk developed by folding lifetm . It is esthetic and practical, while using the laptop, you can also enjoy the delightfulness of life even more. This product comes with the following characteristics: Item no: 301 Adjusts to any angle or height, accommodating both right-handers and lefties New integrated spring assist for the up/down movement Upgraded tilt mechanism on work surface eliminates over tilting Upgraded locking casters provide smoother mobility over hard floors or carpeting Full lip on top and bottom edges keeps pens and books from sliding Top shelves adjust up/down and rotate independently Top surfaces are height adjustable from 26 36 inches Total top surfaces are 31" x 17.5". Larger top shelf is approx 20" x 17.5". The base height is 4 1/2" Weight: 25.3 lb