I'm 57 and trying this without jewellers glasses was a mistake. The screws are TINY. I've worked on computers for years but never with screws THIS small! If your eyes aren't 20/20 get magnification for sure. The kit I got was from BattDepot and only came with one size of screwdriver. There are two sizes required. Dumb!! And the one screwdriver isn't magnetized so getting the screws back in has been a beggar. Good luck with your install. Mine's been more difficult than expected. (Should have bought the iFixit kit!)