Great Purchase for Schools and Educators. Scratches do not impact the usability of the items.
The picture shows examples of two of the demonstrators you will get, others may be more or less scratched then the two pictures.
Magnetic field demonstrator - Iron filings sealed in fluid
The classic magnetic lines of force demonstration - now in a no-mess
plastic case! Simply place a magnet on or near the surface of the
demonstrator, and the filings will follow the magnet as you move it.
Place a magnet on the surface of the demonstrator, and the filings form
the classic lines of force pattern.
The filings are suspended in light oil, allowing for a smooth flow
toward, and around the magnet. Hours of fun and education in a sturdy
plastic case!
Dimensions in inches - 8 x 5 x 0.35
Attention Buyers: Please be aware UPS shipping requires a physical address. UPS packages can not be delivered to P.O. boxes.