They look like ordinary marbles, but they're magnets too! Build pyramids and other fun shapes, play marble games and more. Each marble is 5/8" in diameter. Includes 20 marbles in assorted colors.
- Great for building shapes and playing marble games
- Engage in magnet play, count, sort, and more
- Great for demonstrations of magnetic properties
- 5/8" diameter
- Includes 20 magnet marbles