Natural latex material, no harm to the pet's body, and natural latex chewy, is a very good choice for dogs! The material is soft and there is no filler inside. Inner sound generator, when pressed, it will make a squeak sound. When the dog hears the squeak, it will be very excited to chase this funny dog toy to play! This dog toy has very good bounce, you can play with the dog to get back the game, so you can play all day, for you and your dog to enhance the relationship! This dog toy is a set of 6, each with different colors and different interesting expressions. It's the best gift for pets! This dog toy is suitable for small dogs and is the best toy for small dogs!