1): handle: plastic handle, 2): Material: Made of Chrome Vanadium Steel Or Carbon steel 3) Contents: Slotted Phillips This Screwdriver Bits Set(Screwdriver Bits,Bits Set,Hand Tool Set)was made of high quality material, the professional assembly will be fit your needs perfectly.1): handle: plastic handle,2): Material: Made of Chrome Vanadium Steel Or Carbon steel3) Contents: Slotted Phillips ...