Monitor riser features a height-adjustable design to keep your monitor positioned at a comfortable level. A built-in slot on the surface offers easy storage for your pens, tablet or mobile device. Plus, its raised construction creates a handy storage space underneath the riser for space-saving use. Tabletop is made of medium-density fiberboard. The iPad slot is made of ABS plastic. The legs are made of nylon.Monitor riser features a height-adjustable design to keep your monitor positioned at a comfortable level. A built-in slot on the surface offers easy storage for your pens, tablet or mobile device. Plus, its raised construction creates a handy storage space underneath the riser for space-saving use. Tabletop is made of medium-density fiberboard. The iPad slot is made of ABS plastic. The legs are made of nylon.