KONG Signature Ball 4-Pack delivers four different flavors of fetch, 

KONG Signature Ball 4-Pack delivers four different flavors of fetch, 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. Special felt on KONG Signature Sport Ball is gentler on teeth and gums than regular tennis balls for safer play.

• 4 different balls for fetching variety
• Satisfies instincts to chase and retrieve
• Felt on KONG Signature Sport Ball is gentler on teeth and gums than regular tennis balls
• Some squeak, some do not—for fetching volume control
• Durable construction for long-lasting fun