HIGH PERFORMANCE STEEL: 60CrNiMoV (CrV) alloy steel blade with strong magnetic tip for helping grap the screw slots while putting it in or taking it out SAFETY AND CERTIFIED: 1000V Insulated with dual color component power handle grip. VDE tested, VDE and GS certified. Good visibility WIDE SIZE RANGE: Set includes 3pcs Slotted: 0.5×3.0x75mm-156mm, 0.8×4.0x75mm-170mm, 1.0×5.5x125mm-225mm; 3pcs Phillips: PH0x60mm-140mm, PH1x80mm-170mm, PH2x100mm-200mm WITH 420D OXFORD CLOTH ZIPPER BAG: The item comes with 420D oxford cloth carrying zipper bag, inside PVC coated, water resistant. The carrying bag can serve as travel bag, stationery case, small parts storage organizer of everyday life Ideal for household electricians job, computer, automotive repare and more, Manufacturer: HANGZHOU FITTOOLS COMPANY LIMITED