The Troy-Bilt 46 in. High-Lift Blade fits 46 in. Troy-Bilt riding mowers and zero-turn mowers with 6-point star centerhole including Pony, Bronco, and Mustang. This replacement blade is factory tested and approved to help provide a precise fit, strength, durability, and performance. The shard edge of this blade helps cut grass cleanly and make its way through grass efficiently, to minimize overall mowing time and effort. It's ideal for grass collection systems and bagging grass clippings.