Quik-Lok LPH-Z Laptop Stands Add-on laptop holder for use with Z-series keyboard stands Can accommodate virtually and size laptop. The laptop tray is height and tilt adjustable, and swivels at 360 degrees to allow for ideal positioning of the laptop Equipped with pull-out mouse tray, that can be positioned on either left or right side of the laptop, and is retractable for easy storage and transport Four stoppers, adjustable in width and depth, will securely anchor any size laptop, without interferring with input/output ports, expansion slots, cd-rw/dvd drivers, A/C adapter sockets placed on either side of the laptop