Approximately 2 feet long and about 8 inches thick (at thickest). Constructed of plastalina over a wooden base with epoxy nails, teeth and eyes. The green crocodile is the original sculpt, used to make a two part mold. From the mold both wax and plastalina positives where cast. The wax form was repositioned and used to create a sand mold from which an iron positive is cast (lost wax process). The Plastalina models are for stop  motion use.
Flexible mold and support shell: Urethane rubber (Brush-On 40), urethane plastic (Plasti-Paste®).