Chameleon Art Products, Replacement Bullet Tips - 10 Pack SPECIAL DESIGN - Chameleon Color Tones nibs are specially designed Japanese nibs that are created to ensure perfecting blending and coloring. FIRM NIB - The Japanese bullet nib is a firm nib, great for outlining, drawing and filling in small areas with precision coloring. PERFECT COLORING AND BLENDING - Perfect for bigger color gradations and seamless blends. STAY ART READY - Keep all of your Chameleon Pens art ready with these 10 replacement Japanese Bullet nibs. WE WILL GUIDE YOU - Our instructions will guide you all the way through the replacement process so you can get back to the art.