Blade replaces Greenworks 29423. 21' Mulch Blade. Fits model 2502202. Also replaces Kobalt 535386 and fits Kobalt machine model KM210-06. Outside hole diameters, 10mm/.39' round & 15mm/.59' half moon. Replaces GREENWORKS: 29423 KOBALT: 535386 RYAN/RYOBI: 635373 Fits Models GREENWORKS: 2502202 KOBALT: KM210-06 RYAN/RYOBI: RY401110, RY401120, RY40190
