Product review (4 stars): Good motor coupler but would be better without metal nubs in shaft holes
This worked well as a replacement for the coupler that just broke on my washer except that I had to take a file and file down the metal nubs on the inside of the openings in order to get it onto the motor and pump shafts.  They should make the nubs smaller so people aren't tempted to use a hammer to get them on and damage their pump or motor in the process.  Filing them down so they slip on is the better way, but it would be nice if they didn't have the nubs in the first place.