KONG Extreme Ball (Large, with Hole) is one of the toughest fetch balls available, ideal for dogs with powerful jaws. Made from KONG’s ultra-durable black rubber, this solid ball can withstand aggressive chewing and endless bouncing without puncturing. It features a safety air hole through the center – this reduces weight and allows the ball to compress slightly for safer play, and you can also tuck a small treat inside for a bit of surprise motivation. The Extreme Ball has a high, lively bounce that adds excitement to games of fetch, and its solid resilience makes it perfect for solo chew sessions too. It’s a virtually indestructible ball that provides exercise and mental stimulation all in one, for large dogs that demand extreme durability.