Reynolds Trimax PenBrand Reynolds Colour BLUE Ink Colour Blue Age Range (Description) Adult, Kids Material Plastic Description Discover max writing length, max precision, and max smoothness with the Reynolds Trimax Gel Pen. These gel ink pens have a refillable fluid ink system for a smooth writing experience. They come with a fine 0. 5 mm tip to give you incredible precision whether you're writing or illustrating. Plus, the waterproof ink keeps your work safe from