Size - 7.5" X 5"Game Rule - Players take turns pressing down any number of mice they wish in a single row. The player who presses down the last mouse loses. Then flip it over and start again!These toys are also great for kids with ADD or ADHD and people with OCD or high stress/anxiety levelRecommend Age - 3+ Years Toddler and AdultReusable, Washable and Portable