The KONG Extreme Ball with Hole is a large, dense fetch ball moulded from KONG's black Extreme rubber, aimed at strong-chewing adult dogs. The centre hole is drilled to thread a rope or training lead through — it isn't a treat cavity. It's built for dogs that go through ordinary tennis balls in a session.

The Extreme rubber compound is KONG's toughest, engineered for power chewers rather than casual play. The solid construction gives an unpredictable high bounce for fetch, and the through-hole lets you rig it as a tug-and-throw toy with your own rope, or clip it to a training lead for retrieve drills. It's a single-purpose toy done well: durable rubber, no squeaker, no soft covering to shred.

Owners choose this over stuffable KONGs when the goal is active fetch and tug with a dog that destroys softer balls. The rope-through design suits training work where you want distance throws without losing the toy.