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._x000D__x000D_Features:_x000D_To magnetize or demagetize screw drivers, tweezers, tool bits, screws and other steel objects._x000D_No batteries or electricity required. Easy to use. Just insert the object into the corresponding cavity for several times for magnetizing or demagetizing._x000D_Helps to give a magnetic property to make screws easily to pick up._x000D_Useful for demagnetizing tools before use on magnetically sensitive surfaces for electronic work._x000D_Perfect tool for carpenter, mechanic, DIY lover and others in shed or workshop._x000D__x000D_Specification:_x000D_Condition: 100% Brand New_x000D_Material: Plastic Shell_x000D_Color: Yellow_x000D_Size: Approx. 6.8*6.8*3cm/2.68*2.68*1.18in_x000D__x000D_Weight: Approx.113g/4oz _x000D_Suitable for 1.3~7mm diameter screw-driver tips and other metal parts _x000D_Size 2~4mm screwdriver blades are available _x000D__x000D__x000D__x000D_Package List:_x000D_1 * Magnetizer Demagnetizer Tool_x000D__x000D__x000D_Note:_x000D_Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1To magnetize or demagetize screw drivers, tweezers, tool bits, screws and other steel objects 2No batteries or electricity required. Easy to use. Just insert the object into the corresponding cavity for several times for magnetizing or demagetizing 3Helps to give a magnetic property to make screws easily to pick up 4Useful for demagnetizing tools before use on magnetically sensitive surfaces for electronic work 5Perfect tool for carpenter, mechanic, DIY lover and others in shed or workshop