High Quality Unique Glitter Markers: Outline metallic pen set comes in 12 vibrant colors. The dual-line contour pen, designed with unique technology, automatically generates contours to create a beautiful two-color effect for you. It can draw 3 different effects on light paper, black paper and smooth surface. NON-TOXIC & SAFE: These 2-3mm mid-tip glitter markers are water-based, non-toxic, odorless, smooth, quick-drying, high-quality certified ink, safe for kids, girls and teens. Widely Used: These glitter outline pens can be used on almost any surface, such as rock, wood, canvas, fabric, glass, plastic, metal and more. Great for Christmas cards, birthday cards, greeting cards, envelopes, gift tags, signs, Easter eggs, Christmas ornaments, scrapbooks, posters. Great gift for Christmas, Birthday, Mother's Day, Easter, Valentine's Day, Thanksgiving, New Year. Easy to use: These self-contouring markers are very easy to use. First, cap the pen and shake the Super Curve Pen up and down to mix the ink thoroughly. Second, press the pen tip against the paper for a while until the ink flows to the pen tip. For best results, re-cover glare markers immediately after use and store horizontally.