TULIP-Glam It Up! Iron-On Crystals are made from high-quality reflective glass crystals. Easy to use; simply set your design and iron-on! Crystals are machine washable. Each package includes 49 individual studded letters. Each letter is approximately 5/8x1/2in. Package includes two of each letter except for letters Q; X; and Z which only include one of each letter. Imported.