A replacement nylon line cutting head for all straight shaft anti-clockwise rotation line trimmers and brushcutters designed to take a steel blade. Recommended minimum engine size 18cc. Uses any gauge of nylon line and has a simple and fast 'twist & lock' line changing system. The head is hard wearing and long lasting. Multiple lines ensure a slow wear rate, giving long periods of cutting. Ideal for medium sized machines, replaces nylon heads that use a spool storage system that can be a awkward to reload.