Lend an eerie glow to your Halloween costumes using this glow-in-the-dark heat transfer vinyl from Siser. You can also use these glow in the dark heat transfer vinyl rolls to adorn bed sheets and pillowcases in your kids bedroom, or jazz up T-shirts and jackets for a cool costume party.Details: 11.8" x 36" (29.97cm x 91.4cm) 8 rolls 90 microns Pressure sensitive backing 6 hours glow time CPSIA certified Applies to cotton, polyester, poly/cotton blends and leather For use with 45-degree or 60-degree blades For use with Siser Weeder, multipurpose paper, kraft paper or heat transfer cover sheet