Permanent Waterproof Glass OilArt Marker Paint Pen Description Versatility: Ideal for Adult Coloring Books, Rock Art Painting, Glass, DIYPhoto Album, Black Cardstock, Sketchpad, Scrapbooking, Pottery, WeddingCraft, Dark Paper, Greeting Cards, Calligraphy and more ideal for drawing, Can be used in classroom orCan be used for adult book drawers. Higher quality, water ink, acid free and non-toxic ,quick-dry,Super smoothapplication,Ergonomically designed,Light-weight, Easy to hold and Incrediblydurable. PenSize:14.3*1.5cm Weight: about 20gPackageIncludes:1x Marker Paint PenNote:Must to store themetallic marker pens horizontaly, sit up or down is forbidden. After use,please put on the cover because it is easy to dry. Please allow 1-3mm error dueto manual measurement.pls make sure you do not mind before you bid.All product pictures arephysical, lighting, computer monitor differences lead to color differencesand actual products do not match. The final color will be based on theactual product.