Set Of 3, Gator 3-in-1 Mulching Blades to Replace John Deere Blades GX20250, GX20819, GY20568 Price is for a set of 3 geniune gator 3-in-1 blades Hardened steel for extended blade life, all oregon blades are austemper heat treated 48" John deere, replaces gx20250, gx20819 or gy20568 (3pk) 17" Long, 2, 50" wide,, 187" thick Center hole is 11/16", two outside holes 13/32"