The earrings are small, which is what I wanted: I can sleep with them.  The endless hoop closures aren't easy to fasten, but there is no protruding sharp thing to poke you.  My fist pair had a defective mechanism.  The seller promptly aent me a replacement pair, AND a pre-paid envelope to send back the defective pair. You can't ask for more from a seller.
Silver earrings are cheaper than gold, so if you loose one in daily activities, it isn't a big deal.  Silver is also great for ears with sore piercings: if the ear is sore, put in the silver earrings, and it will heal promptly (silver kills germs), and the hole will not heal closed.