I was looking for these exact studs, and they are perfect.  Fast shipping and the price is great.  Any place that does piercings wants to charge $50 for a pair of piercing studs, even if you don't get your ears pierced.  I need these because I have sensitive ears.  I do not want to pay $50/pair when I only needed 3 pair.  This is definitely worth it because I got 12 pair for just over $20 with shipping.