Additional Details
Avoid Iron Powder Mess!
These pieces of reusable zinc-plated iron wire replace the messy, rust-prone iron powder typically employed in demonstrations of magnetic fields. The short pieces of wire align themselves linearly to provide an excellent representation of magnetic lines of force. Use them to your advantage in any demonstration requiring clear, curvilinear force lines. 50 grams packaged in a reusable storage vial.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.