It is made of silicone, odorless, and will not cause harm to humans and pets.Train your logical thinking and mental arithmetic skills to prevent brain degeneration. This push pops toy is made of high-quality silicone, which is comfortable, soft and durable.Lightweight, compact, portable, easy to carry and store-you can play anytime, anywhere.Suitable for home, office, school, travel, party, parent-child amusement and other occasions. It is very suitable for autistic patients, elderly people and adults who need to relieve stress.The game rules of push fidget toys are applicable to children over 3 years old, which can be two or more people, which can prevent brain degeneration. How to play: 1. Players who take turns insist on reducing the number of pops they want on a single line. 2. Each player can only press 1 coin at a time, or can press 1-3 coins, which must be connected. The same row must be pressed at the same time. 3. The player who pressed the last eject button lost the round.Tip: You can make your own game rules for this pop-up bubble fidgeting sensory toy Color: green Size: 17*15*1.5cm Delivery Quantity: 1 Piece