Upper and lower jaws of a big wolf dog hybrid (a cross between a grey wolf and generally a large "wolfy" looking breed of dog like a Husky, Alaskan Malamute or a German Shepherd) are cast in durable urethane resin. Jaw measurements: width = 3 1/4" = 8.25cm (as measured across the rear molar teeth at the widest point), length = 5 1/8" = 13.25cm (as measured from the incisors to the last molar tooth). Only the upper jaw (palate) measurements are given. The mold was taken directly from a real skull, and is detailed down to the pores and texture of the bone. It also includes a portion of the jaw bone. Please note - the cast has been filled with yellow urethane foam for added stability; this can easily be trimmed and shaped as desired. It also readily accepts hot glue. These casts are also paintable - however you will need to lightly scuff the surface with a steel wool or scouring pad in order to get good paint adhesion. I got good results with scuffing, wiping with denatured alcohol and then priming with the spray can automotive-type primer available in stores. Then it can be painted with virtually any type of paint. I gladly welcome questions; feel free to ask before you buy.