"Ready for a perfect day of snowy season fetch? This set was crafted with extra-durable felt that's gentler on teeth than standard tennis balls - plus a playful squeak that'll set your pup's tail waggin'. Each ball packs a playful squeak to keep your pup engaged and tail-wagging with every bounce. Made with pet-safe materials and extra-durable felt that’s gentler on teeth than standard tennis balls. Sized for easy carrying and designed for high-energy games in the yard, park, or anywhere fun happens. Item Dimensions: 2.5"" Each Ball Imported | Life is Good Winter Fun 4-Pack Squeaker Tennis Ball Set OS Pet Toy in -Blue"