Create amazing accents with this Marabu Porcelain & Glas paint pen in gentian blue. This color is ideal for decorating pieces with seaside-inspired designs like ocean waves. The 1- to 2-millimeter brush tip works great for a variety of drawing, writing, and painting tasks. This Marabu Porcelain & Glas Paint Pen works great on many surfaces, including glass, metal, stone, terra cotta, and even mirrors.