This set of 100 Linking Cubes includes 10 different colors for endless creative construction and early math possibilities. Made from sustainably-sourced, recycled plastic, these manipulatives are more eco-friendly than many other products on the market. These linking cubes snap together on all sides to build up or out. They're an ideal playtime and educational resource for every home or classroom learning environment. Practice counting, sorting, sequencing and more! The pieces connect with an easy snap, making them appropriate for children ages 3+. Size: 0.75."