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.