Material : stainless steel; color: multi-color Professional screwdrivers allow you to open cover of mobile phones easily and without damage to the phone cover. Able to open mobile phone, pda housings, psp, nds, mp3 player, etc Package contents : 31 pieces of screw driver set Strong magnetic force for greater pull and tight hold while light enough for easy removal precision 31 in 1 mini magnetic screwdriver tool set. High quality precision telecommunication tools