KONG Holiday Occasions Balls 4-pack delivers four merry versions of our Signature Balls, each with a unique texture for high-flying variety to keep pups playing. These super-sturdy, ultra-bouncy balls offer long-lasting action, satisfying dogs chasing and retrieving instincts with tons of healthy exercise. Some squeak, some do not, and they all are decked out for the holidays! Special felt on the KONG Signature Sport Ball is gentler on teeth and gums than regular tennis balls for safer play.