Ultimate Tuffy’s are made with 2 layers of industrial grade nylon, 1 layer of pvc, and 1 layer of soft fleece on the outside. All 4 layers are bonded and sewn together to make one super strong layer of material. Each toy has 7 seams. Four seams hold the toy together and then a layer of nylon is added to cover the assembly stitching, then 3 more seams are added. That’s one tough toy! The Stone Bone is approximately 12 inches long x 3 inches wide x 2 inches thick. Red bone print.