The Stone Bone has squeakers which we know your dog will love! More importantly, each toy is made with two layers of industrial grade nylon and one layer of soft fleece on the outside. All of the layers are sewn together to make one super strong layer of material. Each toy is sewn together with twp layers of cross stitching and then two 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 three linear stitches to give the product a total of seven seams. That is one tough toy! Each toy is machine washable (air dry) and they float! The Ultimate Stone bone is 12” long and made especially for medium to large dogs. The K9 Deli reserves the right to choose the color