DescriptionIf you need to work with electronic parts requiring demagnetized tools, just insert the screwdriver tip in the negative terminal cavity to de-magnetize a tool, slide it through the side slots. If you need to work with electronic parts requiring demagnetized tools, just insert the screwdriver tip in the negative terminal cavity to magnetize the screwdriver tip, insert it in the positive terminal cavity.Feature- Color: Blue - Material: Plastic - Size: 5.2 x 5 x 3.5cm - Professional Magnetizer & Demagnetizer Screwdriver Magnetic Tools - Instantly magnetize or demagnetize steel tools and other small ferrous parts - No batteries or electrical required - Perfect for do-it-yourselfers, mechanics and carpenters. - For Screwdrivers, Small Tools, Small and Big Screws, Drills, Drill Bits, Sockets, Nuts, Bolts, and Nails, ect.