1.Material: CRV or Carbon steel 2.Socket size:5,6,8,10mm,10pcs bits 3.Packing is double blister SpecificationsWe can offer you different designs according to your special requests.preferential price for a great deal requirement.This Screwdriver (Screwdriver set,Screwdriver Tool ,Screwdriver Bit Set,Hand Tool set) was made of high quality material, the professional assembly will be fit your needs ...