Nerf-quality materials make the sonic ball toys perfect for fetch and for teaching your dog new tricks. The bright green and orange Sonic 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.