Instinctual Needs: The KONG Extreme black rubber toy helps satisfy dogs' instinctual needs and provides mental stimulation. Healthy play is important for dogs' physical and mental development, emotions and behavior. By encouraging healthy play and satisfying instinctual needs, this toy helps solve chewing, separation anxiety, teething, boredom, weight management, crate training, digging, barking and more! Fetch Toy: The KONG Extreme's unpredictable bounce makes for exciting games of fetch and other interactive play with your pet. Power Chewing Dogs: The KONG Extreme black rubber formula is created for power chewing dogs. Great For Stuffing: The stuffable KONG Extreme is even more enticing when stuffed with kibble, peanut butter, KONG Easy Treat, Snacks or Ziggies. Dishwasher safe for easy clean up. BONUS: For an added challenge, freeze stuffed KONG for 4-6 hours before giving to your dog. Vet Recommended: Veterinarians and trainers worldwide recommend the KONG Extreme. Made in the USA. Globally Sourced Materials. The KONG Extreme dog toy represents the most durable strength of KONG rubber. Designed for the toughest of chewers, the KONG Extreme offers enrichment and helps satisfy dogs' instinctual needs. The KONG unique, ultra-durable, natural rubber formula is designed for determined chewers, while the erratic bounce fulfils a dog's need to play. Want to extend play time? Be sure to stuff with tempting bits of kibble and entice with a dash of peanut butter. Add to the fun by adding KONG Snacks and top with KONG Easy Treat. Stuff and Freeze for a longer-lasting challenge.