PRESTIGE Hotfix flatbacks are perfect for adding sparkle to jewelry, accessories, clothing, crafts, and more. These crystal rhinestones feature a beautifully faceted front and a smooth, flat back. They have adhesive attached to their backings that is heat activated. Decorating designs is fast and easy with these crystals, because the glue is already included. Use Hotfix flatbacks in conjunction with a heat tool for an easy way to add them to fabric. Discover a variety of colors, sizes, and styles to completely bling up your projects.