Husqvarna Trimmer Head R25B with rapid replace streamlines and simplifies the trimmer line reloading process. Enables quick reload of trimmer line without dissembling the head. Simply align, feed and twist the knob and be back to trimming in no time! When the line is too short – tap the trimmer head to the ground to feed out new line. Easy and reliable! Husqvarna R25B Trimmerkop