6mm/8mm Titanium Rings Heartbeat Cardiogram Black Carbon Fiber Engagement Wedding Band This wedding band is made of high polished titanium Width:6mm and 8mm, perfect to be couple wedding bands Black carbon fiber Inlay, polished beveled edges and heartbeat design Wear this wedding band lets you feel your loved one's heartbeat no matter where you are It comes in a little box so it could even be a good gift for Christmas, Birthday, Anniversary, Wedding, Engagement, or Valentine's day