Use these Permanent Deluxe Neon Fabric Paint Pens to make your own designs on shirts and other fabrics. These markers have 3mm brush tip. Great for T-shirts, tote bags, paper, wood or Fabric. Do not use fabric softener, shake well. Press tip to surface to fill in or personalize item. Let dry flat for 20 minutes. Do not wash for at least 24 hours. Turn inside out, on gentle cycle. Dry flat or line dry. May cause permanent stains on walls, wood, vinyl, carpet, etc. Re-sealable caps Not suitable for children under 3 years.