10 pieces Although these are made with materials that are compatible with metal allergies, allergic reactions are not always guaranteed to be avoided, so please perform a patch test before use. There may be instances of adhesive overflow or misalignment of parts. Please purchase only if you understand this. We carefully check the adhesion and inspect the product, but there is a possibility that parts may come off during shipping. Returns and exchanges are not possible. Please understand this as well. Cautions: ・Please refrain from use if you are pregnant or have small children. ・If you experience any discomfort, remove immediately. ・We are not responsible for any skin problems that may occur during use. ・Please use at your own risk. ・Remove after 3 days to 1 week of use.