This Axis Scientific articulated hand skeleton model is an anatomically correct modeling of the human hand. The fingers and all bones in this hand model are strung together by a flexible wire that exhibits the natural range of motion of each bone. This unique model allows students patients and instructors unsurpassed access and visibility into the working human hand. All Axis Scientific products come with a 3-Year warranty and everything Axis Scientific sells is backed by its best in class customer service and support. Made by Axis Scientific and backed by a 3 year warranty this anatomically correct model of the human hand weighs less than one pound and is made out of a durable PVC-like material. Available in both left and right handed options. Each model measures approximately 7 inches from the base of the wrist to the tip of the middle finger and approximately 5.5 inches from the thumb to the fifth digit.