Sharp cutting edge！ Not easy to break / Not easy to roll / Sharp and wear-resistant. Specifications: Material: Carbide Circular saw blade size: Arbor Bore Size: 8mm (0.31 inch) Blade Diameter: 150mm (5.9 inch) Long alloy blade size: length 150mm (5.9 inch) Plastic blade size: length 140mm (5.5 inch) Note： Please use protective gloves when fitting. Hurry up and start trimming the messy grass and welcome the beautiful and fresh new environment! Part Name Brush Cutter Blade, brush cutter blades 5.9", carbide tip brush blades, Brush cutter 40 teeth(24v lawn mower). Please refer to the owner’s manual of your trimmer / brush cutter / weed eater and our product description to determine whether our blades will fit your tools. Suitable for most lithium battery lawn mowers！ It is specially designed for replacement of mower blades, suitable for garden scenes such as flowers and grasses. Package Include: 1 x 40 teeth trimmer head 2 x alloy blade 5 x plastic trimmer head (white)