Miniature replica of the human spine and pelvis, hand & wrist, pelvis, foot & ankle, knee, or skull made into a clever, anatomical key ring. Made of durable plastic. Includes informative key card on back of packaging. Size: 4" long. Choking Hazard: Small Parts. Not for children under 3 years. Choking Hazard: Small Parts. Not for children under 3 years.