For the dog that loves to play fetch, give them their favorite thing on their birthday - tennis balls! Pink dog tennis balls with "Happy Birthday" printed across the fuzzy tennis ball fabric. These balls are durable and won't harm your pet's teeth. These balls are great for giveaways, puppy parties, events, social media pictures, and more! These balls do NOT include squeakers. Available in 2 sizes. Mini 12 Pack -1.5" in diameter -best for small and toy breeds and puppies Regular 6 Pack - 2.5" in diameter - Best for medium to large-sized dogs