Toro 3-10607 is the part number for the 3-pack.
Each blade's part number is 10-6637.
Used on 48" Toro side discharge mowers like the Wheelhorse model.
Also replaces Windsor part number 50-1880.
16" long with a 3/4" center hole. 2" wide and 0.1870" thick.
Made in the USA by Copperhead.