This multifunctional screwdriver is for repairing glasses and watch widely Materials: Aluminum steel 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 Screwdriver only, other accessories in the picture is not included The include: Flat for head screwdriver / screwdriver / Star nut driver, Manufacturer: Limtula