KONG SqueakAir Balls Dog Toy. The KONG SqueakAir® Ball combines two classic dog toys - the tennis ball and the squeaker toy - to create the perfect fetch toy. This durable, high-quality Squeak air® Tennis Ball will not wear down your dog’s teeth. It’s made with a special non-abrasive felt. Fetch toy for healthy; active play Non-abrasive KONG Tennis material; softer on teeth Squeaker entices play