Material of screw bits:Chrome vanadium steel Material of handle:Aluminum alloy Size:60mm*100*20mm Weight:89g Multiple size screwdrivers comes in a handy leather wallet case, snap shut to keep all tools safe, and it's small enough to carry with you anywhere, or store it just about anywhere. Professional hardware tools,it provides you the most powerful function,allow you to disassemble iPhone,iPad,laptop,Samsung,Nokia,camera, glasses, watches,Motorola ,PC,Macbook air/pro and other electronic. Screwdriver bits are made of CR-V steel,with a strong magnetic can make your work more efficient.The high quality screwdriver Non Rust. The handle in the aluminium alloy material manufacture,light and durable,non-slip design ,the tail adopts the precision bearing design,flexible and easy to use. 12pcs screw bits (Torx,Slotted,Pentalobe,Phillips,SIM needle.),screw handle,sucker,pry pick,Tweezers.