I didn't measure the diameter of the bolt I was going to apply this to, so I had to work a little harder to get it on but it works fine. It's a very thin, flimsy plastic blade BUT it's quiet and should last a while if it's not exposed to sun. We keep our RV under cover so sun shouldn't be a problem. Cost was minimal so I suppose I got my money's worth if it lasts a year or two.
Rating:
[5 of 5 Stars!]