Features 1、To magnetize or demagetize screw drivers, tweezers, tool bits, screws and other steel objects 2、No batteries or electricity required. Easy to use. Just insert the object into the corresponding cavity for several times for magnetizing or demagetizing 3、Helps to give a magnetic property to make screws easily to pick up 4、Useful for demagnetizing tools before use on magnetically sensitive surfaces for electronic work 5、Perfect tool for carpenter, mechanic, DIY lover and others in shed or workshop Specifications This magnetizer/demagnetizer is lightweight and portable to fit in tool bags and super easy to store in workshops or tool sheds. 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. Features: To magnetize or demagetize screw drivers, tweezers, tool bits, screws and other steel objects. No batteries or electricity required. Easy to use. Just insert the object into the corresponding cavity for several times for magnetizing or demagetizing. Helps to give a magnetic property to make screws easily to pick up. Useful for demagnetizing tools before use on magnetically sensitive surfaces for electronic work. Perfect tool for carpenter, mechanic, DIY lover and others in shed or workshop. Specification: Condition: 100% Brand New Material: ABS Plastic Shell Color: Blue Size: Approx. 5*5*3cm/1.97*1.97*1.18in Weight: Approx.80g/2.8oz Package List: 1 * Magnetizer Demagnetizer Tool Package List