First: I do not recommend you buy these if you want to take them in and out every day.  These are meant to stay in and are difficult to maneuver.

I bought these for my two upper-ear helix piercings.  They were difficult to put on, though not too bad with the help of some needle-nose pliers.  They have held up well to 24/7 use since I bought them a month ago.  There is no tarnishing as of yet.  Overall, for the price I am pleased.