This NASA Stylish cotton patch has a large size and well stitched embroidery craft. It a perfect decoration on textiles for NASA fans. With hot melt adhesive on the back, it is easily to iron on or sew on to any garment. It stays in place and maintain bright colors even after washing. Iron-on Instructions: 1. Preheat iron to a cotton setting. 2. Place the embroidered patch in your desired position and cover the patch with a cloth like a handkerchief? 3. Put the preheated iron onto the patch for 15-30 secondes. 4. Turn garment inside-out ,and repeat step 3. Attention: Keep the cloth dry and control the preheat temperature when you ironing patch. Machine washable while you need to turn garment inside-out before washing.