Review on Closed Bulge Acorn Nuts 1 38 by Mike Roe

I have a mild obsessive compulsive disorder when it comes to nuts and bolts on my cars, even lug nuts. I needed a pair and I don't like mixed styles so I bought enough for all four wheels. They arrived quickly (quicker than advertised) and I had no trouble installing them. I've used an impact wrench and live in a snow belt so expect rust in the spring. The time will show.