Compact/collapsible and flat design, great for use at home, bedroom, office or while traveling, just slip it into your pocket or put it in your purse, wallet, backpack, bag and use it anywhere you go, e.g. Cafe, Dining Table, Airplane Tray Table, etc. Easy to install and carry. Suitable for horizontal and vertical use,Made of high quality plastic, the arms are connected by swivel hinges, sturdy and durable for frequent use.