Customized Stress Relievers, Liver Stress Reliever - Medical Grade, Help lighten the stress of a heavy medical situation or promote the signing of a "donor" on one's driver's license with this liver-shaped stress reliever 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 This product is not intended for use by children or pets It may present a choking hazard to children under 3 years of age. ... #26049 $1.34/each.