The OX Black Chalk line reel is designed to be innovative, durable, and have performance fitting for a professional contractor. The line of the Chalk Reel was developed and built with Kevlar for more durability. The aluminum case is built to withstand the rigors of the jobsite and keep internals safe from being damaged after drops, bumps, or knocks. Matte black coating remains cool after sitting in the sun. The body is also designed to be ergonomic and stay comfortable in the hand all day. The reel rewinds quickly with a 6:1 gear ratio.