1、UNIQUE DESIGN AND METAL MARKER: This outline marker is different from ordinary markers on the market. The marker set features a bright metal 5‑2mm refill. When the outline marker set is written on the paper, a bright circle of color appears around the color. Unique technology automatically generates contours to create beautiful two colors effects for you 2、ECO FRIENDLY CONTOUR PEN: Contour metal marker pen is made of opaque watercolor paint, safe, non toxic, odorless and environmentally friendly 3、STRONG ADHESION WITHOUT BLURRING: Super wavy glitter marker with strong adhesion to write on almost white paper, Easter eggs, Halloween pumpkins and more. Dry quickly after writing without blurring colors 4、EASY TO USE: Close the double line cap, rock the carriage up and down, and press the tip on the paper for a while until the ink flows to the tip. Close the cap after use to prevent the outline pen ink from drying out. It is recommended to write on some thick paper, otherwise there will be slight scratches 5、WIDE RANGE OF APPLICATIONS: Marker set can meet your various needs, ideal for writing crafts, adult coloring, teen craft supplies, stamps, gift cards, greeting cards, Christmas cards, DIY crafts, personalized posters, paintings, school projects, etc. aspect use 12 x Outline Pens Item Type: Outline PensSpecifications: 12Pcs/setProduct Material: Watercolor paintProduct Use: Hand painted book painting, ceramic DIY, glass painting, cup graffiti, writing on notes, scrapbooks, greeting cards, gift tag, etc.Product Application: Most people