Smooth edges and corners. No burr, no hurt to your hands.
Restore digital order with challenge thinking. Challenging, fun and fascinating digital puzzle game.
The game could help improve both you and your children's intellectual development of creativity, imagination and so on. Portable size and easy to carry.
A wonderful intellectual toy to paralyze free time. It can add a lot of fun to life and train children's mathematical mind. You must use logical thinking skills in your challenges and use principles of reasoning and induction to solve problems.
Multiple ways to play: 1. Restore the numbers and begin to challenge logical thinking - first disturb the order of 1-15, and then puzzle in order; 2. You can take apart the numbers and learn to add, subtract, multiply and divide by yourself.