This vinyl has a smooth glitter finish that works on lycra, spandex, cotton, leather, polyester, and blends. CPSIA Certified, so it’s safe on garments for any age. Pre-shrink any shirt with cotton content. Use a quick one-second tack application for layering. Apply with medium, even pressure; preheat fabric for 3 seconds, then apply transfer for 15-20 seconds.Details:Available in multiple colors12" x 15"1 sheetSmooth glitter finishCPSIA certifiedAllow 24 hours after application before washingWash inside out, tumble dry