This is a Pair of 2 new Motor brushes for the Hobart A200 20 quart motor, You need to replace both brushes, Buying one is like buying one shoe.   Replaces 00-065239-00020 These will fit the original Hobart brush motors the model A200 mixer came the 1st 15 years of the A200 mixer. Many brush style A200's are still out there, it was a very good motor and why they are still running  over 50 years later. I suggest you also clean the commutator with a cleaning stone,   These are not real hard to replace and can restore power to a weak motor with worn out brushes and cleaning the commutator. Please be sure you have a brush style motor before you buy!
If you have any questions about this item please ask before you buy.   
FC