Made with a durable stainless steel, this waterproof pendant necklace clearly displays a medical alert symbol in case of emergency. Within the waterproof pendant, there is a small piece of YUPO paper, which is a synthetic, non-smudging waterproof paper that you can include any important information on. The capsule shaped pendant can also hold a dose of medicine too for peace of mind. Stainless Steel Yupo profile paper; Use fine tip marker on yupo paper 100% Waterproof Imported Ball Chain: 27" L Pendant: 1" L