1.Titanium Steel Handle Screwdriver Set 2.Bearing Swivel Cap design 3.Rubber ring design,anti-skidding 4.Chrome vanadium head BK 332 screwdriver ... ring4. Chrome vanadium headFeature discription1. Bearing Swivel Cap design, more easy to use2. Rubber ring design, anti-skiddingHow to use?Applicable to all ...