This Precision Screwdriver Set by #Faireach has 110 pieces and can repair just about anything from eyeglasses to computers. It can also be used to tighten furniture in a box as my son calls the put together type of furniture. Great for fixing the innerds of watches , Tablets and more. For under $20 you'd be hardpressed not to purchase this set to have on hand "Just in case". Great buy for the money! Saves you in the longrun from having to go out and buy various types of screwdrivers and mini tools!