These colorful 12mm marbles are excellent for use in educational settings, such as classrooms or homeschooling environments. Teachers and parents can use them as math manipulatives to help children understand concepts like sorting, patterning, and probability. The set of 80 pieces ensures there are enough marbles for group activities and collaborative learning. Features -Color:Assorted Color -Material:Plastic -Size:1.20X1.20X1.20cm/0.47X0.47X0.47in -Math teaching tool: provides an effective math teaching aid, fostering children's mathematical thinking and enhancing their interest in learning. -Safe play: constructed from 12 mm solid balls, these toys are safe and reliable, ensuring secure playtime for children. -Creative play: enhances fun and stimulates children's creativity and imagination, ideal for use at home or in school settings. -Operational skills: the ball track design helps develop children's operational skills and spatial imagination, improving handeye coordination. -High durability: ensures use with materials, making it a dependable educational tool for extended periods Package list: 80 x colored marbles