Multiple Layers Sewn Multiple Times! Tuffy's Pet Toys are the most durable toys available. There is no such thing as Indestructible! Each toy is stuffed with safe, non-toxic fiber and we added a protective pouch around each squeaker as an added safety measure in the unlikely event your dog gets to the core. Our toys have been tested on numerous dogs (including our own) to ensure the highest quality and most fun for our best (four legged) friends and the best value for our two legged customers. These toys are machine washable (air dry) and float.