The Equilateral Pen Notebook Style_Experiment Slip this notebook into your

Slip this notebook into your bag before you head out in search of fairy circles or morels

keep organized data sets

it IS rocket science

Here's an inky blue mouse pad featuring some of your favorite squid and octopus

Fill it up with field notes

The Equilateral Pen Notebook Style_Experiment Slip this notebook into yourThere's something beautiful about the 60 degree angles of an equilateral triangle. Here's a metal pen that's ready for your most elegant proofs, thoughts, or musings. With a cap that snaps on with a satisfying click, take your notes to the next level with the Equilateral. Each pen comes in its own felt case. Refill it with our special . 7 mm or . 5 mm ink cartridges.