[Replaces Part Number] The lawn mower blade is a direct replacement for K5559-34330, 391-612, 15315, 92-184, 310-064 [Compatibility] This mower blade is compatible with Ku bota 42 mower decks, including Z122R, RCK42P-122Z, RCK42P-90T, T2090 series, and more. For more information on the models, please see the product descriptions below. [Consistent Cutting] The K5559-34330 mower blade with the round hole is made from sturdy materials to ensure efficient grass cutting and prolonged performance. The outer layer of the blade is powder-coated to avoid injury. The coating will peel off with use, showing the actual sharpness of the blade [Easy Installation] Gather the appropriate torque wrench set and bolts. During installation, ensure that the K5559-34330 blades are placed so that their cutting edges face the same direction [Product Specification] You will receive two blades that can be installed in just a few minutes. Blade Length: 21-1/2 , Width 2-1/2 , Thickness 0.24 , Circle Center Hole: 0.72 . Please check the required blade size carefully before purchasing Item Weight 6 pounds Manufacturer budrash Item model number K5559-34330 Product Dimensions 22 x 2.48 x 0.25 inches