Glass Dome Multi Color CNA - Certified Nurse Assistant - Crystal Initial Z - Sophia Necklace. Glass Dome Multi Color CNA is approx: 0.9 x 0.7 x 0.2 inches (HxWxD) including loop. High quality printed paper sealed under a glass dome in a metal frame. 1.5mm Dainty Cable Chain Necklace: 18 inches with 1 inch extender chain and lobster claw clasp. Silver Tone Small Crystal Initial with Beaded Border is approximately 0.38 inches not including loop. Dainty and delicate, the Sophia Collection is about wearing an expression of what she cherishes, with just a little bling to brighten her day. PLEASE NOTE: Our products are lead safe, but are not intended for children 14 years and younger.