Description: The trimmer head is made of premium 65Mn steel, rust-proof and durable, scratch-resistant and deformation-resistant. In case of resistance such as stones, the blade can be stretched freely, cut more evenly, and weed more thoroughly. Easy to install and convenient to use. Features: [Heavy Duty] The main body is made of high quality 65Mn steel, sturdy and robust body ensuring durability and longevity for a lifetime of beauty. [Rounded Edge] The cutting head has a rounded edge instead of saw blades. Rounded edge wheels specially designed for cutting and edging grass or weeds. [Safe] The brush cutter can reach all the weeds around your trees without cutting or damaging your trees, practicality and convenience. [Effectively Weed] The grass trimmer head is specially designed for garden use to effectively remove all unwanted and messy weeds from your lawn or garden. Easily pull out grass by the roots. [Widely Applicable] The center of this trimmer has a 2.54 cm / 1 inch hole,