Outward Hound Puzzle Cube Dog Toy Ectodex Helps support muscle and bone Helps support muscle and bone development thanks to an adapted protein content and adequate levels of calcium and phosphorus • Change my function by adding one of my many connectables • My all in one ergonomic design holds any dog leash and allows you to walk your dog with ease and comfort • You can customize me by adding any of my connectables • I hold everything you need to free your hands the Puzzle Cube is fun for every pup HOLE LOT OF FUN: Unique to the Puzzle Cube are all the unique shapes of holes and passage points for your dog to engage and release the tennis balls inside