Teal & Green Tennis Wool Balls Dog Toy

Can't quite stand up to active puppies

My 5-month-old Irish Setter pups LOVE their wool balls, but they chew through them too quickly. I have to take the toys away from them in the middle of their play (whichever ball one pup has is the one the other pup wants, even though they each have their own ball!) because the balls pretty quickly start to get shredded, and I don't want the pups swallowing big chunks of wool. I have already bought 6 of the balls, but we are down to 3, and I do not think I can afford to keep buying them, even though my boys and I love their eco-toys.