This is our grass trimmer spare parts set, 5mm (0.2 inch) hole, not universal blade for other lawn mower in the market. Steel blade stainless steel, suitable for mowing lawns, weeds, small shrubs quickly. Professional grass trimmer blade can solve a variety of weeding, can be used in villa, yard, community , lawn campus, park and other areas, a great choice for garden pruning. Easy to use and install, just connect the trimmer head to the rotary hammer. lawn mower shaft. If there is any problem, please feel free to contact us, we will get back to you within 24 hours.