Ok maybe not for diving, but I do have one that I was using in my swimming pool to adjust the infloor cleaning heads. My 5 year old son asked if he could play with it. He is still learning how to swim on the surface with a float vest, but I let him try it without the vest and he was a natural. He can swim for several minutes on a full spare air. Just watching him is worth every penny I paid for this on ebay, however is does not go anywhere near daddys dive gear.