Husqvarna Trimmer Head T55X Tap N Go - Developed for users with high demands on durability and minimised downtimeExclusively designed by Husqvarna the T55X trimmer head features a semi automatic line feed system Tap 'N Go and ball bearing resting surface. Features developed for users with high demands on durability and minimised downtime. The trimmer line is fed automatically when the head is pushed into the ground. This means that the user always controls when the line is fed and the line can be fed while working with the machine.