Fashion Dark Luminous Heartbeat Ring Stainless Steel Ring Promise Heartbeat Ring Glowing Jewelry for Men Women Feature： Ring Unique Features: Luminous..Because the ring will be luminous . When your beloved, in the dark to see the ring heartbeat ECG pattern, he must be very happy, just like your lover on your side,, you can feel to her heartbeat Make it more attractive, more compelling. Wearing it will decorate your charm and gorgeous, stand out from the crowd, enhance your elegant temperament and highlight your charm of your own style. Material: 100% Titanium steel.Luminous Titanium steel ring does not turn your finger green. It has a unique feature in that It does glow in the dark Unique Gift ring design for couples Men and Women, Boy and Girls. Description: Material: Stainless steel Size: see size chart Luminous effect: green