These were a great buy. I can highly recommend them. I was able to replace all of the tacky brass knobs on a row of built-in cabinets in our living room using just one pack. 

PROS Easy to install and feel high quality. They have a great weight to them (compared to the chintzy ones I took off) and have a notch on them so that when they are aligned and tightened, they hold firm and won’t spin loose and get crooked. 

CONS None. I’ve been really happy with these.