Description Circuit wire this is great for home school making and breaking a single electrical connection circuit experiments. Good for teaching basic principles of electricity and how a simple circuit works.These are great for demo and project. Easy to use and great learning tool for students. Features - Color: Black -Material:PVC, copper - Size: 20.00X0.14X0.14cm/7.86X0.06X0.06in - This is great for home school making and breaking a single electrical connection circuit experiments. - Good for teaching basic principles of electricity and how a simple circuit works. - These are great for demo and project. Easy to use and great learning tool for kids. - Practicing on an education model would definitely beneficial any student. - Of course that while this does teach them how electricity works, you have to make sure to teach them not to play with actual electrical equipment around the house. Packing list100 x wires