SWAROVSKI ELEMENTS Hotfix crystals are a popular and addicting product with beaders young and old. For that reason, we're happy to introduce the latest shape in the Swarovski line of Hotfix crystals, the H2720 Cosmic Delta. These beautiful, triangular-shaped crystals are available in a wide array of colors and sizes and will add sparkle and shine to your jewelry designs. Simply heat up your BeJeweler® Stone Styler™ and get to bedazzling.