Cool set, it has everything you need to disassemble phones and any small things. A screwdriver came in a charged state, I tried it, unscrewed and tightened the screws of the asterisk of the cell phone. First, I pull it off a little without turning it on, and then I turn on the button to unscrew it. I liked the pencil case that included three sets of bits, a TPC charging wire and a screwdriver itself. I am satisfied, I recommend the seller.