The KONG Extreme Goodie Bone dog toy delights dogs that are the toughest of chewers and that delight in chew sessions. Made from the most durable KONG Extreme unique black natural rubber formula, this dog chew toy is designed for determined chewers. This interactive dog toy also features patented Goodie Grippers that turn this entertaining toy into a fun treat dispensing challenge that can be stuffed with your dog's favorite kibble. Want to extend the chew session? Stuff this dog pet toy with KONG Snacks and entice with a bit of KONG Easy Treat.