Promotional Keychains & Keylights, Spine and Pelvis Bone Keyring - Medical, This spine shaped key tag with key holder is just what the promotional doctor ordered Measuring 4.25" x 1.5", this replica product is a perfect handout for doctor's offices, radiology labs, hospitals, chiropractors and much more This product is not intended for use by children or pets It may present a choking hazard to children under 3 years of age. ... #24048 $1.34/each.