"Tuff" with no stuff! Extremely durable pet toys with no "stuff" in the center! Great for interactive play with one or multiple dogs. It can be used as a Frisbee or a tug toy on land or in the water. Great for flyball training! Easy to toss and great for indoors! Washable! And Floats!! The soft edges won't hurt gums. No poly stuffing. Each Tuffy toy is made with up to 4 layers. 2 layers are made of industrial grade luggage material, 1 layer of plastic coating and the other layer is made of soft fleece on the outside. All of these layers are sewn together to make one super strong layer of material. Each toy is sewn together with 2 layers of cross stitching and then 2 layers of linear stitching. After the toy is sewn together an additional piece of black trim is added to cover the four rows of stitching. This extra piece of black trim is sewn with 3 linear stitches to give the product a total of 7 seams. These toys are machine washable (air dry) and float.