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【ULTRA-EFFICIENT CUTTING】50% Stronger Airflow Lift–With an upgraded 32mm lift height (vs regular 28mm), this 3-in-1 lawn mower blade(mulching, bagging & side discharging) dramatically boosts grass collection, reducing time spent emptying the bag. Powerful suction prevents clogging for smoother, faster mowing — while precision-shredded clippings decompose naturally, enriching your lawn with vital nutrients. 【TOUGH & SHARP MOWER BLADES】Forged from durable high-carbon steel, this blade stays sharper and stronger for tough weeds and rugged terrain. Rust-resistant coating protects during installation (wears off during use). Easily sharpenable for maintaining a clean, even cut on lawns. 【REPLACE OEM #s】Designed for Mower Blade Troy Bilt/Cub Cade/MTD Replaces OEM #'s 742-0741 742-0741A 742-04100 742-04276 742-04276S CC-742-0741 942-0741 942-0741A 942-04276 942-04276S 490-100-C089 Craftsman OEM # CMXGZAM100067 【COMPATIBLE MODELS】Fismiuta 21 inch lawn mower blade compatible with Troy-Bilt Lawn Mower : TB105 TB110 TB115 TB120 TB125 TB130 TB130XP TB140 TB160 TB160XP TB200 TB210 TB220 TB230 TB240 TB270ES TB270XP TB280ES TB290ES TB320 TB330 TB360 TB360ES TB370 Craftsman Lawn Mower : M100 M105 M110 M115 M140 M210 M230 M250 M260 M270 M310 M320. See the product description for more models. 【BLADE SPECIFICATIONS】For Deck Size: 21 . Length: 21 (533mm), Width: 2-1/4 (57mm), Thickness: 9/64 (3.4mm), Air Lift: 1-1/8 (32mm), Center Hole Shape: Bow Tie. Note: Only fits Bow Tie spindles—confirm your mower’s center hole pattern to avoid installation issues. ASIN B0GHR1YLND Item Weight 1.7 pounds Manufacturer Fismiuta Package Dimensions 22.25 x 2.75 x 1.75 inches