With a pen tip that glides like scissors on wrapping paper and ink that feels like getting into freshly washed bed sheets with shaved legs, the Quirky pens are notorious for a reason. ✨The Magic is in the Details - 0.5mm Tip - Gel Rollerball - Black Ink - Waterproof Ink - Size: 14x1cm (5.5x0.39 inches) - Weight: 23g (.81oz) - Pen clip engraving: 'Sunshine' - Replaceable Cartridge: Black, Red, Blue (available on our store) - Made in PRC With a perfectly weighted barrel and adorable engravings on the pen clip and top lid, our pens are here to not only inspire, but potentially ruin every other pen for you ever. So whether you're writing your heart out in your journal, taking notes at a work meeting or penning the next best selling book, the Quirky pens are here to be your companion through thick and thin. 🚨Warning It is our personal recommendation that you keep this pen in a safe place and avoid sharing it with others. We have first hand experience of the addictiveness of these pens and that they have a tendency to "disappear". As the famous saying goes, keep your friends close but your Pen-emies closer. 💬Care + FAQ ❓What is a gel pen and how do I fix it? Everything you need to know can be found on this page here -> https://thequirkycupcollective.com.au/blogs/news/what-the-heck-are-gel-pens ❓How to replace the Ink Cartridge 1. Hold the gold tip of the pen (the nib end) and twist to open the pen casing. 2. Remove your old cartridge and dispose. 3. Pop in your new cartridge 4. Screw the top back on! 5. Ta daaaaa! Ps. If that spring pops out, make sure it goes back into the bottom of the barrel (tail end) before you pop your new cartridge in. ❓Other Pen Cartridges + Brands Our pens aren't specifically modelled after any popular brands, so we unfortunately don't have any other cartridge recommendations! You are more than welcome to search for one though :)