Heart Self Adhesive High Quality Large Acrylic (Plastic) Flat Back Rhinestones, 50mm size is 2". Great for parties and cosplay costumes. Very easy to use. Simply Peel and stick and you are ready to go! Make sure to apply on a clean / dry surface. Good for creations at scrapbook and craft works, Perfect for card making, scrapbooks and body art. Professional grade for jewelry making, fabric embellishments, and commercial displays. Add your own glue. Used for cards and invitations, costume making, cosplay embelishments. Strong adhesive, last for a while. For adult crafting, for professional / hobby use. Not intended for children under 14.