Silver Gold Lifeline Pulse Heartbeat ECG Charm Heart Pendant Necklace for Women Lady Valentines Gift Forever Love Heart Rate Charm Pendant Necklace Pendant Size: 1.8"*1.2"; Chain Lengh: 16" - 23" (Adjustable) Material: Alloy / Stainless Steel Perfect Gift for Any Occasion, for women, lady, girls, girlfriend. This stylish necklace features a lovely heartbeat design with an optional heart charm that makes a personal, close gift for any loved one. "Mn&Sue" has registered US Trademark,the item is ONLY provided by Mn&Sue,and did not authorize any second stores to sell our items. If the item you choose is sold by other sellers, it is not legal copy from Mn&Sue and we could not guarantee the quality of other sellers,Thanks!