Kyjen Treat Training Tube (Large) device is the ultimate fetching toy. Dogs must bring the tube back and release it to you in order to receive the treat inside. The controlled reward teaches rambunctious dogs to fetch and release the toy without a struggle, instead of a disruptive tug-o-war or chase. It can also be used to learn scent work. This is a great dog retrieving toy. This dog toy measures 8 inches long

Kyjen Treat Training Tube Large

Teaches dogs to retrieve and release

Dogs learn to drop the tube without a tug-o-war

Improves obedience skills

Strengthens the dog/human bond

Great for teaching scent work

This Fetch and Drop Training Device has been recommended for dog training and is used by many trainers for teaching retrieval and also for scent work.
Squeeze the soft side with the slit opening and insert with your dogs favorite treats while he is watching.
Let your dog see and smell the treats inside.
Throw the tube for your dog to retrieve.  
Make your dog return the tube back to you and release it without a struggle in order to receive treat.
Open the slit and give your dog a treat for a job well-done.