Sigma Delta Tau SDT Trio Charm Necklace, our custom casting of the SDT lavaliere in Greek letters, a delicate white glass pearl dangle, and the teddy bear mascot charm, officially licensed. The lavaliere is sterling plated, so a great quality at a great price. The lyre charm is pewter. Comes on an 18 inch stainless steel chain with a lobster claw clasp and the chain is non-tarnish. A simple and classic style!! A great big little gift. Available in all 27 national groups.