♥♥♥ Material: Rubber.Diameter: 4.5cm/1.77' (Approx.) ♥♥♥ Features: Pet Chew Toy, Ball Shape, Durable. ♥♥♥ 4.5cm diameter ball toy, super thick and durable. ♥♥♥ High quality material, it has good elasticity and appropriate hardness. ♥♥♥ It's a good pet chewing toy, also is a good tool for training your pet.