I was looking to replace a lost flat back stud similar to this. I'm really impressed with the quality for the price point! I'm used to paying way more for my cartilage jewelry, and I'm so happy I decided to try Cords Club. Perfect size for a cute little cartilage piercing. I included a picture of how I'm wearing it (even though it's poor quality, you'll get the idea).
Since I'm used to changing body jewelry, this was very simple to put in. If you're new to this kind of jewelry, don't worry! I think it would still be easy for a newbie.
I have been recommending this brand to friends, especially those with sensitive ears. I will be coming back for more the next time I'm looking for fun earrings.