If you are sharp you will purchase 2 belts....slip both through the mount
when you install the new one and when the newly installed belt breaks at the
most inopportune moment....you have a new belt ready to go in a matter of
minutes

Great idea but be sure to keep replacing the belts in pairs. Living a few years
twisted up in the bilge is as bad as living there and going around the pulleys.

Still cheap tho.