Ethical Pet Kitty Fun Boppers Light-Up Cat Toy (4″) – A 4-inch bouncing mesh “bopper” toy with a foam ball core that lights up when it’s bounced or batted. This flexible woven toy has an LED inside that flashes upon impact, immediately attracting your cat’s attention. Its springy, bouncy construction makes it jump and dart unpredictably, encouraging cats to leap and chase, and the built-in flashing light and soft mesh exterior make it perfect for interactive play, even in low-light conditions.