Can be used to repair or screw up screws for eyeglasses, sunglass, watches, cellphones and other precise devices With a for chain, portable and easy to hanging This multifunctional screwdriver is for repairing glasses and watch widely The include: Flat for head screwdriver / screwdriver / Star nut driver Materials: Aluminum steel Screwdriver only, other accessories in the picture is not included, Manufacturer: Oxxggkao