Tap-N-Go 130mm diameter head has steel bushings to avoid breakage of the line during work, a reinforced knob, is easy to open for maintenance and cleaning & is easy & reliable. Can be filled with round and square line. Comes boxed with line and arbors – M10 x 1.00 female LH, M12 x 1.5 female LH. Suitable for brushcutters over 33cc.