I Love You Couples Heart Necklace SetEach half is a contrasting color to the other half to demonstrate the yin & yang balancing effect you two have on one another. When the other is not around, you feel incomplete and out of balance. The two crystals in each half of the titanium hearts sparkle brightly and reflect your inner love out to the world. There is tough titanium in both pendants so you don't have to worry about scratches and damage. The material is strong just like your love.