Product review (2 stars): 5 sizes. None fit
I saw a lot of reviews for these knobs that said "didn't fit" or similar. I checked these out (same brand anyway) at Home Depot and they looked like a good fit for my 1/4" stems. When I got the package it was a completely different item, and all of the stem adapters were too small. PLEASE add some dimensions (esp. for the adapters) and save everyone involved some time, blood, sweat, and tears.