Spot Mylar Balls Cat Toy (4-Pack) – Four crinkly mylar foil balls in shiny, reflective colors that cats can’t resist. Each ultra-light 1.5-inch ball makes an intriguing crackle sound when batted or pounced on, encouraging cats to chase and play. These Mylar balls are perfect for swatting across hard floors and are great for solo play, providing mental stimulation and exercise while satisfying your cat’s urge to hunt moving “prey.”