Perfect for hospitals, private medical practice and many other medical-themed events, each liver measures 4.25" x 2" and is made of from a material that's easy to squeeze, along with a look that's sure to get plenty of attention. Customize each with a brand name or logo, via pad printing, using up to 4 colors. This product is not intended for use by children or pets. It may present a choking hazard to children under 3 years of age.