... Swivel Cap design 3.Rubber ring design,anti-skidding 4.Chrome vanadium head BK 332 screwdriver set SpecificationWe have ... many different size and different heads to the screwdrivers, such as Hexagonal, Cross, Slotted, Y-type ... Cap design, more easy to use2. Rubber ring design, anti-skiddingHow to use?Applicable to all branded mobile phones, MP3/4/5, PSP and ...