Features: 1. Material：Silicone. Package include: 1 x Stress Reliever 2. This pop fidget is a great sensory tool you fidget with again and again. 3. Ever catch your children, or maybe even yourself, popping the bubble wrap right of the box of a package? Then you'll love this bubble fidget. 4. Just press the mouse bubbles down and they make a slight popping sound; then flip it over and start again! Endlessly reusable and washable, too. 5. Birthday gifts, Christmas gifts, Halloween gifts. Specification: Size: 12.5 x 12.5 x 1.5cm Material: Silicone Notice: 1.Due to the different monitor and light effect, the actual color may be a slightly different from the picture color. 2.Please allow 1-3cm differs due to manual measurement. includes 1 x Push Pop Bubble Fidget Game rules: Each person takes turns pressing the raised mouse, and the last person to press the mouse loses. Each person can press one mouse at a time, or multiple mice, but they must be connected. Each person can only press the mouse in one row at a time, not alternate rows. If you want to win, you must implement overall planning, proficient logical reasoning, perform verbal arithmetic and mental arithmetic, and use knowledge of odd and even numbers during the game. How to cleverly arrange to force the opponent to press the last mouse? When there are fewer rats, there are two situations, one is that the rats are not connected, the other is that the rats are connected together. 01 Disconnected example Assuming that we are the first to move, then when the remaining rats are even numbers that are not connected, we will win 02 connected example In the rules of the game, you can press multiple mice in a row at a time, and when the remaining mice are connected, the situation becomes ever-changing. For example, the remaining mouse is "7", which is an odd number, and it seems that we are about to lose! But with two mice connected together, we can turn defeat into victory! We pressed down the two mice, and the rest are 5 unconnected mice! At this time, the opponent can only press one mouse. When it is our turn, there are 4 mice left! Do the math, did we win? Of course, these are just basic strategies. When the game really starts, to ensure that the opponent presses the last mouse, players need more careful thinking, rigorous mental arithmetic, and quick reaction. How to ensure that the remaining mice are even? How to ensure that the remaining even-numbered mice are not connected? These are all issues players need to consider. Players can use different strategies to win!