No piercing needed. Easy to wear, just clip them on with the spring-type design! Unisex, so they're easy to share with a partner. The simple design is timeless and versatile, making them a great addition to any style. 《Color》 Black 《Size》 Ring (inner diameter): 16mm, Thickness: 2.0mm 《Contents》 Set of 2 (for both ears) 《Material》 Surgical Stainless Steel 《Please Read》 To ensure prompt shipping, we may skip initial greetings after purchase. We will greet you with the shipping notification, so please wait with peace of mind. The product will be sent in a simple package, directly in an envelope. Please be aware that we do not use bubble wrap or other cushioning materials. Please also check the notes in our profile before purchasing.