Unique Heads-up "R-Go Riser Duo Tablet/laptop Stand Adjustable Black is a Duo is an ergonomic tablet and laptop stand in one. You can use the stand as a tablet stand with document holder or as a laptop stand. You can set the R-Go Riser Duo at 4 different heights. The document holder section can also be a lower position for equipment in its own write thus providing 8 positions in total. The unique metal and bonded flex material construction gives you a lightweight, easy to travel product which is sturdy and rigid in use. : 'It is physically impossible to use a laptop/i-pad ergonomically without the correct equipment.'