Magnetic Match Rings is the fun way to learn about magnetism, help develop visual matching skills, and improve eye-hand coordination. When you stack the rings, they either snap together or repel the next ring and cause it to float. Select one of 40 pattern matching challenges and stack the magnetic rings so they match the colors and pattern as shown. Select one of 40 pattern matching challenges and stack the magnetic rings so they match the colors and pattern as shown. Contains: 20, two-sided activity cards, 10 magnetic rings (3 blue, 3 red, 2 yellow, 2 green), storage bag, and 1 magnetic stand.. Fun STEM supporting activities!. Discover positive and negative magnetic polarity!. 40 challenges on 20 doubled-sided cards.. Challenges will provide floating magnets in the solution. 3+ years. Grade PK+