'MARK' Pen

'MARK' is an everyday carry pen that has multiple features. Meant for makers and designers, it's designed to act as a bookmark in your book or notebook when you're not using it. It features a ruler and caliper combination for both imperial and metric measurements. The ruler can also be used as a straight edge. It's designed to house a gel cartridge that you can buy on amazon below:


https://www.amazon.com/dp/B08YY1GGTT?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1