Mulching Blade / John Deere GX20249Pack Size:1John Deere GY20567, John Deere GX20249Dealer Choice 50-3036, Dealer Choice 51-4450, Home Depot 375233, Laser 91699, Lowe's 228458, Mow More JD10635, NHC 212-5015, NHC JD6015, Outdoor Factory Parts 578431910, Oregon 91-139, Oregon 91-476, Ratio Parts 22-755, Ratio Parts 22-755, Rotary 10635, Rotary 15-10635, Sunbelt GD6015, Sunbelt B1PD1045, Sunbelt B1PD5045, Sunbelt B1JD6015John Deere L100-L118 and 14.542GS Sabre lawn tractors; Sabre Most Sabre with 42" deck; Scotts Scotts lawn and garden tractors L1742 and L17.542 (2002) series 42" and 48" decksLength: 21 3/8 ", Center Hole: 11/16 ", Outer Hole: 3/8 ", Center To Center: 3 11/16 ", Width: 2 1/2 ", Thickness: .164 "