The KONG Flexball is made of a durable material that makes for long playtimes. Perfect for satisfying natural hunting and retrieval instincts. It also has a flexible shape that returns after chewing, contributing to long-lasting play sessions. Grip-friendly handles are great for tug-of-war and have the added benefit of being easy to pick up for interactive fetch play. An unpredictable bounce and an easy-to-clean surface make this toy one that is guaranteed to delight. 15.5 cm in diameter.