One New Aftermarket Trimmer HeadTech Info:- Quick Change Quick Change-Fits the majority of brand name trimmers-No need to remove the head from the trimmer to change the blades12" cutting diameter-Complete with adaptors to fit 90% of the trimmers on the market-Includes 3 metal edged plastic blades and 3 heavy-duty molded aero lines: 8mm x 1.25 LHM & F, 10mm x 1.25 LHM & F, 10mm x 1.00 LHF, 7mm x 1.00 LHF, 3/8"-24 RHF, 5/16"-24 RHFAlso includes 2 flat washers, spacer, reducer, 1/4"-20 bolt, 5/16"-18 bolt and 5/16"-18 LH bolt All OEM part numbers and logos are to be used for identification purposes only