Pink Equilibrium Stud - Flat Back (Single)Rosy in color, without being overtly girly, our Pink Equilibrium Stud is a perfect piece to join your ear party. With a gradient of pink sapphires, this piece gives you a touch of feminine while being modern and delicate. How to wear: Insert the flat back tube into the back of your ear and fasten it in place with the stud itself. Give it a little push to make sure it's properly closed, the slight bend in the post will create tension to keep it secure.