1. Not easy to crack, not easy to rot, healthy and no peculiar smell
2. Carefully polished, rounded corners, do not hurt hands, the size is suitable for children to grasp
3. Different levels of difficulty, step-by-step training
4. Help children establish number recognition within 100, explore the laws of numbers, and understand number sequences
5. Material: wood
6. Applicable age: children aged 3 and above
7. Size: about 25.8 x 25.8cm