Item Package Quantity:1 pcsFeature Fits any garden trimmer, brush cutter, weed eater that takes 1" (25.4mm) or 0.8"(20.0mm)Carbide is reputed to be one of the hardest-strongest alloysThis Blade fits most Brush Cutters on the marketSpecification Material: Carbide Arbor Bore Size: 25.4mm (1 inch) Blade Diameter: 200mm (8 inch)Attached Washer Size: OutDiameter 25.4mm/1 inch, InsideDiamter: 20.0 mm/0.80 inchBlade Width: 2 mm/0.8 inchPackage Content1x 80 Teeth Carbide Brush Cutter Blade1x washerKindly Remind:1. Please use protective gloves when fitting2. Please refer to the owner’s manual of your trimmer / brush cutter / week eater and our product description to determine whether our blades will fit your tools.3. Please store the washer carefully because small wash is easy to be lost4. Finally it is design for brush cutter or weed cutter blade, don't use for circular saw blade or miter saw blade or other using5.Conform blade rotate direction before you cut6.Small notice: 2,3 or 4 teeth metal blade fits for most soft weed or small brush, you needs weed eater saw blade as to big or hard brush, weed and shrub which diameter is more than 0.5"(13mm)