Our favorite part of this collection has nothing to do with the pen itself, but rather, how it’s stored and charged. Equil came up with a really clever travel case that holds all the pieces together, and allows them to charge at once. The battery lasts up to eight hours per charge. At the core is a 6.25” extruded triangle that’s 1.35” long on each side, and it’s wrapped in a cover that feels a lot like the polyurethane…