We have a three year old Lab and a backyard pool. Every day at 3pm, Medjie comes to get me to take her out with our Hurleys. She dives for it and will start swimming for the steps and I will throw the next one to the far side of the pool. She turns in the water to go fetch that one also. She has learned to get 3 of them in her mouth at once. Great fun and exercise for her. We have five different colored Hurleys and love them.