MaxPower 561811X Commercial Mulching 2-Blade Set for 42 Inch Cut John Deere Replaces AM137328, AM141033, GX22151, GY20850 Commercial Mulching Blades; Replaces OEM No. GX22151 21 3/8 Inch Length; 7 Point Star Center Hole Proudly Made in the USA Fits 102, 115, 125, 135 riders Includes 2 blades