Crinkit - 8oz Water Bottle Dog Toy with Crunch - Medium/Large The Crinkit provides a safer way for your dog to enjoy playing with a water bottle. The durable Crinkit is great for dogs that love to chew and play with empty water bottles. We recommend it for dogs that are tough on toys, but not aggressive chewers. The Crinkit will now come pre-stuffed with a water bottle. If you want to replace the water bottle please follow the instructions. The Crinkit helps reduce boredom and anxiety. Softer material is easy on the mouth, making it perfect for senior dogs. Material is free of BPAs or Phthalates, and is easy to clean. It contains FDA approved ingredients and is made in the USA. SIZE: 8oz Crinkit is meant for medium and large dogs. It's over 5" long and an 8oz water bottle fits inside.