- Alloy S2 steel bits with an alloy aluminum handle for strength and light weight. - HUMANIZED DESIGN: ergonomic grip with surface anodizing and knurling for anti-sweat, anti-corrosion, and non-slip handling. - TOUGH S2 BIT: 22 bits made from alloy S2, HRC 58-62, tested for hardness and toughness; low magnetic tip to avoid affecting sensitive electronics; CNC precision prevents stripping screws. - EXTRA LONG AND SLIM BITS: 1.77 inch (45 mm) long bits for deep, hard-to-reach holes; ideal micro screwdriver set for computers, laptops, game controllers, toys, and more. - WIDE APPLICATION: 22 in 1 precision screwdriver set for iPhone, iPad, MacBook, cell phones, PCs, tablets, cameras, game consoles, PS4/Xbox controllers, watches, glasses and other electronics. Suitable for professionals or hobbyists repairing phones, computers and laptops. - PATENT DESIGN: built-in extension shaft; release it to work in narrow spaces and retract after; turning end for better control. - QUALITY ASSURANCE: a company committed to lifetime tools, aiming to provide a great customer experience and high-quality products.