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. Magnetic multicolored marbles 100 pack. 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 100 magnetic marbles