Swarovski 2808 Hot Fix Heart Flat Back 10mm Crystal Royal Red The heart shape is an essential part of romantic, playful, and young looks and a timeless component in jewelry, accessories, and fashion-from children's clothes to lingerie and bridal wear. The heart is a universal symbol of love and completely new to the Flat Backs product assortment. As a sparkling messenger of romantic feelings, the 2808 Heart Flat Back Hotfix has the potential to become a true classic.