Fill the Fetch’N Treat with dry food or small treats and see how much fun your dog will have fetching the ball back to the toy to get his reward. The Fetch’N Treat will stimulate your dog to keep playing even when you are not around therefore being entertained for longer. No batteries are required.
 
The difference between the Original and the 2nd Generation is that in the 2nd Generation, the kibble compartment can be taken out for easy cleaning. The design is also different.