Additional Details ------------------------------ Product description: Perfect for creative lettering, the PITT Artist Pen brush nibs work like a paintbrush and will create thick and thin lines. India Inks can be layered to create new or deeper colors and will not bleed through paper. Faber-Castell India Ink allows images in most colors to last in excess of 25 years. The ink is also waterproof, odorless, lightfast and works on a variety of surfaces. The Bright Color Set includes: #156 Cobalt Green, #125 Middle Purple Pink, #113 Orange Glaze and #171 Light Green.