General description This AlwaysH Replacement Grass Trimmer Blade Heads set includes four stainless steel blades designed specifically for grass trimming and weeding. With a 5mm (0.2 inch) hole, these blades are not universal and are tailored for specific lawn mowers. They are effective for quickly mowing lawns, weeds, and small shrubs, making them an excellent choice for garden pruning in various settings such as villas, yards, communities, and parks. Technical specifications Material: Stainless steel Hole size: 5mm (0.2 inch) Installation Easy to install by connecting the trimmer head to the rotary hammer or lawn mower shaft.