Electromagnet project Included Switch | Battery Holder | 2 x Lugs | 1 x Ferrule | 2 x Cable ties | 2m Electrical wire | Nail | Base Board | Paper clip Not Included Pliers, battery (works best with a good battery) Measurement Base: ±86mm x 35mm After winding the wire around the nail, first test it directly to the battery and see if it is picking up paper clips. Do this before connecting the switch. The colours of some components may vary.