Hand Exercisers features: Rodent Pioneer Toys Children's Mathematical Logic Interactive Toys(Green) Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. Colour:green Healthy silica gel, harmless to the skin, non-toxic and harmless. [Quality] The silicone material is safe, non-toxic, tasteless, and will not cause harm to people and pets. High-quality silicone brings a good rubber feel. When using it, just press the mouse bubble down to relax, then flip it and start again. Players take turns pressing any number. The player who pressed the last mouse will lose. It exercises children's logical thinking ability, which is both interesting and inspiring. This toy is the perfect gift for children. It can not only relieve stress, but also train children's basic mathematics knowledge. It is convenient to carry when traveling, and can be played anywhere, such as cars, airplanes, restaurants, camping, schools, offices, etc. Reusable and clean Has a soothing and calming effect. Each educational toy is very suitable for people with special needs, attention deficit hyperactivity disorder and attention disorder. Help the hands to be busy and busy. A useful toy that can soothe and relax the body and mind by focusing on the task.