Marshalltown Line Pins help stretch mason's line while laying brick or block. Their leaf point design allows you to place them easily into mortar joints or stake them into the ground. The line pins have a large circular head for a wide striking surface. They are chrome-plated to prevent rust and wear and are forged into a single piece of hardened steel to prevent bending, cracking, and breaking. Specification Length 157mm (6.3/16in)