The Bic pen is one of the most popular writing instruments in the world, with over 100 billion produced since its inception. While convenient, consistent, and light, the fact that these billions of pens will sit in landfills for thousands of years is a major downside.

That's why I designed the Lumos - Refillable Writing Pen. This pen is built to last and provide as much utility as possible. Here are some of its features:

• Infinitely refillable: The Lumos writing pen has a reservoir that can be easily refilled just by dipping it in ink. It works by capillary action, which feeds the pen tip and keeps the ink flowing beautifully.
• Two tip sizes: The refillable pen comes with two tip sizes, fine (approx. 0.3) and medium (approx. 0.5), so you can try both and see which you prefer.
• Any ink colour: You're no longer limited to just blue and black. You can refill your pen with any fountain ink colour, including waterproof pigment ink.
• Smooth tips: The Lumos writing pen comes with an incredible Japanese-made writing tip that provides just the right level of feedback on paper. You can write at any angle, and the tip is incredibly durable, so no matter how hard you press on the paper, it will take it. When the tip does eventually wear out, all that needs replacing is this tiny tip.
• Drawing the line: Disposable drawing pens are also a problem, but the Lumos pen solves that issue too. With its rounded tip, you can make hairline strokes as well as thicker lines, and the pen has a beautiful feel on the page. Combine it with pigment inks, and you have a professional drawing pen with an extremely durable tip.
• Endlessly interchangeable: The Lumos Refillable writing pen doesn't limit you to just one tip type. You can easily swap between another 9 different tip styles, including fineliners (0.1, 0.2, 0.3, 0.5, 0.8, 1.0) and felt-tips (2mm chisel, bullet, and brush). You can find the full creative tip set here.