"The Black PVD White Opal Septenary Seamless Ring is a professional-grade jewelry piece perfect for healed piercings. Made of high-quality 316L stainless steel with black PVD coating, it features a synthetic white opal gem and is annealed for easy bending. Available in 20G, 18G, and 16G sizes with an inner diameter of 5/16", this ring is sold individually for a sleek and effortless look."