Quick-Dry ink and a durable acrylic tip make this the ideal marker for writing on any surface including both sides of photos, stickers, ribbon, vellum, metal, glass and transparencies. Photo safe, acid free, non-toxic and waterproof ink goes on smoothly to leave an even coat of permanent, transparent color. This package contains five American Crafts Slick Writer Marker Pens: Black, Blue, Red, Green & Purple, fine point. Made in the USA.