Adopting the ergonomic design concept, the inside of the ring is arcuate. Internal diamond pattern design prevents moisture trapping. Don't worry to get a ring mark even wearing for a long time. Our rings are all made of pure medical-grade silicone. They’re comfortable, smooth, non-conductive and definitely safe even for sensitive skin, not to be damaged from heavy work or strenuous exercise like electrical work, swimming, weight lifting, etc. Stylish rings in different colors. We’re confident that you will love them! You can choose which one you want to wear every day.