We are the FIRST to offer this solution, with your comfort top of mind! The FLAT backing is easily removable so you can change your earrings as you wish. The short, adjustable post means no poke and secure sleep-in comfort. Back-Off studs have a SHORT POST with two adjustable lengths (5mm and 6.5mm) Sold as a single. Modern must-have stud for daily styling. Small 0.03 ct This stud has a curved bowl-like bottom to be comfortable against the ear Made with love and we left proof on the back -- engraved HEART Dimensions: 0.14" wide (3.5mm) Recycled sterling silver, nickel free, rhodium plated. Hypoallergenic.