Product review (3 stars): Puhlease--Enough Already!
It's a set of gears.  They work.  They replaced the broken ones.  Will they last +20 years like the original ones?  I don't know.  The cost was cheaper than other on-line and local sources.  Shipment/delivery was timely.

  Is it possible to buy on Amazon without having to write reviews?  Are all the sellers on Amazon so insecure that they need constant positive feedback for supplying what is essentially a commodity?  Shouldn't prompt payment and profit from the sale be enough?