I read mixed reviews on these earrngs and decided to give them a try myself. I have sensitive ears and I have 15 piercings in my ears.

1. They do come with clear rubber-like backings and arrive in a little sealed baggie.

2. They are a little sharp fresh out of the package and I recommend putting a metal stud through your ear hole first (especially if you haven't worn earrings just recently) and then putting the nylon one in after rubbing the stud between your fingers (takes off the remainder "shards" from the nylon mold used to make the earrings).

3. I think these are good for either a.) a short occasional wear or b.) leave-in wear. I found that after several days of taking them out at night and putting them in the next morning, the nylon post would start to bend so they are not as durable as the metal ones (well duh....).

Overall, I think this is a great set of earrings for sensitive ears and they are worth the price! I intend to check back in the future to see what other sets become avaliable.