There are many quality rulers and pens on the market yet this amazing combination of Ruler and pen labeled as Rule/One is hell a unique shaped modular stationery item. With its interchangeable heads including the options of stylus, ball-point pen heads in orange, silver and black and, it marks a difference from the rest. Each Rule/One has a unique droplet shape and is made of five aluminum milled pieces, anodized in black color. It’s 13cm long and very compact, lightweight yet durable and easy to carry around with its lanyard to wear around the neck or simply put in your jeans pocket. This is made for multi-usage and a must–have quality manufacture.

Available at for $45+