This beechwood mirror tray features 100 translucent gem cubes in 10 different colors. Explore creative construction and early math activities with these manipulatives. And keep kids engaged with an added sensory element. These cubes are great for sorting, sequencing, patterning, counting, building towers and creating small-world scenes. Help children develop fine-motor skills, descriptive language and early math skills. Use the mirrored base to capture crystal-clear reflections. And pair these gems with an indoor or outdoor light source to explore color mixing, internal reflections and more. These chunky cubes are finished with smooth edges that are perfect for small hands. Made with beechwood and durable acrylic, this set is designed to last for years of play. Use the wooden tray to package all the pieces for easy cleanup and storage. For ages 3+. Size of tray: 10.7"L x 10.7"W x 1"H. Size of cubes: 1". Recommended age 3+ years