Made with exclusive Tuffut Technology®, a durable three-layer lining, they are soft and cuddly on the outside yet nearly indestructible. Great for both large dogs and puppies, for pulling, tugging and hours of play. Fun animal character designs. These fellers squirrels got it going on..the Big Feller is a full 23" long and our Lil Feller works for even the smallest dogs, he is just about 10" but light and easy to pick up.