Earrings Stud Size : Studs bar length:6/7/8mm,AAAAA cubic zirconia size:3/4/5mm. Each bar and top CZ can be switched at will, no more worry about the Size you can adjust different sizes to fit your ear piercings or nose piercings in different positions. Internal Thread Upgraded Design:The unique design of internal threaded guide column at the front You can wear they quickly and earrings studs stay firmly not easy to fall off.Compared with the butterfly buckle backs,Flat back design ensures a comfortable experience when you sleeping, sporting,Equipped with a perforated ball grasping tool, it completely solves the problem of inconvenient wearing due to long nails.Piercing kit stretching taper，Assist in guiding in Labret Jewelry，through your piercing much more easily，Make your piercing jewelry much more easier to wear. PREMIUM MATERIALS: made of hypoallergenic surgical steel, sturdy and not easily deformed,corroded, rusted and faded.highly polished，Very Smooth to Wear and Easy to Clean. Comfortable for long time wear.AAAAA round CZ earrings and square CZ earrings have different combinations Meet your different daily needs for different combinations, make your every day so charming Muitiple Using: suitable for cartilage earring, nose piercings, tragus, helix, rook,lip, labret. These Flat Back Earrings Studs Can be Used for Lip Rings,Labret Stud,Medusa Piercing Jewelry, Nose Stud, Helix Earrings, Tragus Piercing Jewelry, Conch Earrings.Wear it, whether it is usually or party, you will be the most shining focus The flat back earrings are designed to sleep without removing the earrings. The earrings are suitable for men and women of all ages.Wonderful Gift Perfect gift for prom, date, Christmas, party, birthday, anniversary, Mother's Day, Valentine's Day Elevate Your Piercing Style with Our Premium Hypoallergenic Surgical Steel CZ Stud! Discover the ultimate versatility in body jewelry! Our Hypoallergenic Surgical Stainless Steel Internal Thread CZ Stud is expertly crafted for flawless wear across Helix, Cartilage, Conch, Nose, Lip, Labret, Medusa, and Tragus piercings. Designed for both Women and Men, Equipped with Piercing Ball Grabber Tool for effortless jewelry changes. No more dropped balls or frustrating installations!