Nerf-quality materials make the squeak tennis balls perfect for fetch and for teaching your dog new tricks. The bright blue colored tennis balls are easily trackable for both you and your pet no matter where or how far you toss it. Lightweight durable and weather & water resistant. Smaller diameter ball is great for dogs of all sizes. Designed with you dog's safety in mind each of our dog toys are tested to ensure endless hours of family fun. Ideal for all life stages.