The Levo eBook, iPad and Tablet PC Clamp On Stand is an adjustable ebook holder and stand for tablet computer designed for use by people with grasping neurological or upper extremity disabilities, cerebral palsy or arthritis. This stand clamps to desks or tables to hold the tablet or ebook reader at eye level. The support board fits iPads and most iPad cases and other tablet computers as well as ebooks, including the Amazon Kindle, Barnes & Noble Nook, and Sony eReader. It adjusts to an infinite number of positions to meet the user's needs and folds out of the way with a push. The stand and clamp are made from steel and nylon (super strong polymer), and the support board is made of ABS. DIMENSIONS: The unit fits desks or tables up to 2 inches thick. The minimum height is 4 inches above the desk and the maximum height is 8 inches, measured from the bottom of the stand. The reach is 22.5 inches to the center of the support board. WARRANTY: Limited lifetime warranty.