The Tuffy's Jr. Rumble Ring has three squeakers and can be used alone or interactively with the dogs and humans. It can be used as a Frisbee or a tug toy. Great for flyball training -- soft edges won't hurt gums. For small to medium dogs 4 to 12 lbs. ''Tuffy's Pet Toys are Vet Recommended and Approved''. Ultimate Construction: Each toy is made with two layers of industrial grade nylon and 1 layer 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 nylon trim is added to cover the four rows of stitching. This extra piece of nylon is sewn with 3 linear stitches to give the product a total of 7 seams. That's one tough toy!