The PETFAVORITES Mylar Crinkle Balls are perfect for calming down your cat when they’re in need of a little extra TLC. Made of soft and lightweight mylar material, these balls are easy for your cat to bat, chase and pounce on. With a diameter of 1.5 inches, these balls are also easy for your cat to swallow. The PETFAVORITES Mylar Crinkle Balls come in a set of six and are a great way to add some fun to your cat’s life.