The essential basics. Sometimes a regular threaded ball just won't cut it. These 90 degree angled balls just might be the answer for situations just like that. These jewelled, threaded balls are set with a forward facing gem, which is ideal for nipple piercings or when you just want to create your own, custom navel piercing. Plenty of gem colors available, match your piercings with your outfit or completely crazy and create a whole range of rainbow colors across your body. Do keep in mind that it can be a challenge to get both of the balls facing forward, in the same direction. Bioplast piercing jewelry might be an answer to this, as you can twist the balls just far enough until they match perfectly.