Note-This product is not white during the day. It has a light green/yellow hue to it. Make a bright statement with a LuminousFlex™! LuminousFlex™ is a glow-in-the-dark heat transfer vinyl, laminated with a heat sealing adhesive. This HTV is soft and thin, taking on finer details with grace. It feels and acts similar to ThermoFlex® Plus! Our LuminousFlex™ gives your design an unexpected bright green glow when the lights go out. LuminousFlex™ is suitable for sportswear, leisurewear, and many other applications. Glow-in-the-dark designs are very popular and will make your decoration stand out from the crowd! This product has a non-sticky carrier, and no stretch. Has a green glow. Blade – 60° Cut – Mirror image Temp – 320° F Pressure – Medium, even Time – 15 seconds Peel – Warm Care – Wait 24 hours before 1st wash. Wash inside-out, cold water, gentle. Tumble dry low heat. Do not dry-clean. Applies to: Cotton, Uncoated Polyester, Polyester/Cotton, and Polyester/Acrylic Excluding Nylon Size is +/- 0.50 inch Colors of products may be different than what the screen on your device shows. TIP: Always perform a test cut prior to cutting a whole design Helpful tip-Specialty Materials recommends if your T shirt or material your are putting this HTV on says "dry fit", "Moisture Wicking", or is Gildan Ultra Cotton, use a spray bottle of rubbing alcohol and squirt the material where you are putting the design. Then rub it in a bit with a cloth and dry or even heat press it to dry then press the design. This is due to the material being a coated material, instead of an un coated material.