Vertical notebook stand HNBC-4, is easy to vertically set up notebook, then save space of the working desk. It is made of Aluminum, there are rubber pads attached inside which can prevent sliding.This kind of stand is suitable for notebooks thickness from 25mm to 43mm. And the stand size is 203 x 132.4 x 97 mm (L x W x H).The package of accessories is included: User's Manual, Screwdriver, and Screw