High-quality materials: The aluminum trimmer head is made of high-quality aluminum, which is wear-resistant and durable, and has a longer service life. The wire is made of high-quality nylon, which is sharper and stronger. More convenient for weeding: The grass trimmer line head adopts a double-thread design, used for trimming and thinning, it is a multifunctional garden tool. It is suitable for slopes, corners, and other hard-to-clean places, with more flexible weeding ability. Easy to use: We provide a complete mowing tool kit, including installation tools and installation parts. The installation steps are simple, you can assemble it by yourself to save labor cost. General Size: The trimmer head size of the brush cutter is: 45 x 59mm, the wire diameter is 2.4mm, the size fits perfectly and it is not easy to fall off. The nylon line is easy to replace, making your work much easier. Wide Application: Suitable for all common left-hand thread brush cutters and electric brush cutters,