Washfast and permanent after heat setting with a dry iron for two to three minutes. Formulated with the most light-fast, archival pigments. Tee Juice also leaves fabric soft to the touch. Works on synthetic and natural fabrics including cotton, linen, rayon, silk, wool, nylon and polyester, as well as canvas, wood, leather, paper, clay and more. This package contains one .08mm fine point fabric marker. Conforms to ASTM D 4236. WARNING: Choking Hazard- small parts. Not for children under 3 years. Comes in a variety of colors. Each sold separately. Made in USA.