Product Type, NASA Logo Symbol Heat Transfers Sticker Material, Made of 100% Vinyl Ideal Temperature, Use between 270-350 degrees Fahrenheit Application, Peel the back carrier sheet before application Pressure Requirement, Apply medium and even pressure Additional Requirement, Teflon sheet needed over the vinyl image (not included) Press Duration, Press for 5 seconds (home iron: 10 to 20 seconds) Peeling Method, Remove immediately and peel warm Popular Use, Perfect for NASA enthusiasts; great for caps, hats, shirts Season, Suitable for all seasons Size, Measures 2 1/2 X 1 9/10 inches; instructions may vary based on transfer machine and material Demographic, Designed for Adults/Unisex Manufacture, House-made product