1. Cultivate mathematical thinking and lay a foundation for mathematics
2. Enrich color cognition and shape cognition
3. ABS material, smooth without barbs
4. With storage box, easy to carry
5. Dimensions:
-6 layers: 200 x 90 x 106mm
-8 layers: 230 x 90 x 126mm
-10 layers: 244 x 90 x 146mm