Tightly crocheted with 100% mercerized cotton yarn for durability, these balls are a great choice for small to medium sized dogs! This ball set can provide hours of fun and exercise with interactive play or for playing alone. Balls measure approximately 2 1/2" in diameter. Stuffed with natural combed cotton, and a high-quality squeaker. Also available without a squeaker added, just choose that option from the menu. Not recommended for power chewers! Made in USA! ** For your pet's safety we recommend periodically checking your pet's toys for wear and tear. **