The Makita 191R00-0 Trimmer Bump & Feed Trimmer Head helps maintain convenient and efficient line feeding during trimming tasks. Designed for compatible Makita string trimmers, this cutting head allows the operator to advance the trimmer line by gently tapping the head against the ground, supporting continuous cutting without frequent manual adjustments. It is a practical replacement ... https://www.wholetoolbox.com/makita-191r00-0-trimmer-bump-feed-trimmer-head/191R00-0.html