Cup Holder for Desk or Bed: Place drinks in a convenient spot! Adjustable clamp allows you to mount the holder horizontally to a desktop or vertically to a bed frame. The clamp is easily converted with just a few screws and fits on desks up to 2.25' thick Adjustable Holder Design: The holder's arms adjust from 2.6' to 3.6' to hold everything from coffee mugs to soda cans with even enough space for 32oz hydro flasks