Pearl Black paint pen for fabric with 3mm bullet-tip line. Shake pen very well before use. First time it may take 5 min vigourous shaking for pigement to become fully mixed and come out the nib. Shake with cap on to avoid splatter. Allow fabric to dry, then heat set with iron before washing. Works on dark & light coloured fabrics. Lightfast, odorless, water resistant when dry, Acid-Free, non toxic. Made in Japan