.Paint pen set assorted colors, enable to draw 2mm board line or add embellishments to your coffee mug, craft projects, canvas paints, wood craft, paint craft glass jars, pumpkin, easter egg wood cutout, christmas ornaments, christmas balls, gifting cards, painted rocks, stones, canvas shoes, wood slices, clay protect, baby onesie, fabric etc.These acrylic art paint supplies are non-toxic, acid free, water-based, washable and opaque with well covered. It's safe for kids craft painting.The acrylic paint pen was design with two steel ball in each pens and the ink will flow evently and smoothly with great coverage.These medium Round point tip marker pens easy to control flow, good for semi-bold medium-weight lines and larger details painting, perfect for both fine details and filling in large areas.Great for craft making or art creating on virtually any surface, such as rocks, paper, canvas, glass, ceramic, plastic, fabric, wood, metal etc.Usage: (a) Shake the paint pen well before use. (b) Take the cap off and keep the nib upwards, Press in and release the nib several times to clear of any. (C) Press the nib downwards on a spare piece of paper and release, do this several times until the ink flow.