The Hultafors Chalk Line Duo has an innovative design, two housings connected by one line. This makes work safer and more efficient in hard-to-reach places, such as roofs or sky lifts. You don't have to walk or throw back the end hook like on a traditional chalk line reel, instead you can crank the line back and forth between the houses for easy pigment replenishment. 

The chalk line has a 30 metre long braided line that produces distinctive lines thanks to its good absorbent properties. They are equipped with a metal crank with a 3:1 ratio and an ergonomic release button that allows you to pull out the line without the crank spinning. The housings are made of robust ABS plastic with a large opening for easy filling and a bayonet cap. The cap is divisible to make it easier to change the line.