Okay, these flashing balls are seriously going to make your pets go nuts (in a good way)! The package comes with three transparent plastic balls that light up with colorful flashes whenever your pet touches or moves them. It's like magic - they stay dark until there's movement, then they burst into this awesome light show that immediately grabs your pet's attention. Made from quality ABS plastic, they're safe, non-toxic, and durable enough to handle even the most enthusiastic players. The 3.5cm size is perfect for both cats and dogs to bat around, chase, and generally have a blast with. Even when you're busy or not home, these balls keep your pets entertained for hours, which is great for their exercise and agility training. They work anywhere too - living room, backyard, park, you name it. Watching your pet chase these glowing balls around is honestly pretty entertaining for you too! They make perfect gifts for pet owners, and with three in the pack, you can have multiple going at once or save some as backups. Your furry friends are going to love these things, I promise!