Faithfull Chalk Line Aluminium 30MThe Faithfull Rapid Chalk Line offers quick and effective line marking when building or decorating. It features 6: 1 rewind gearing, making it six times faster than traditional reels. The die cast aluminium body contains a 30M line reel, which passes through a reservoir of coloured chalk (not supplied). It becomes coated as it is reeled out. Snapping the taut line against a surface deposits the colour chalk leaving a visible but temporary line to work