925 Sterling Silver Product Diameter: 1.4 cm The product is sold individually. The product is worn without an ear hole. The product is designed to be placed in the ear without being compressed. Instructions for Use: Avoid contact of your silver products with perfume-soap-deodorant and other chemicals. When your silver products darken, use a silver polishing cloth or damp cloth. We recommend that you wipe it with a cloth. When you are not using your products, keep them in a closed box away from light and air. Protect the surface of your products from scratches.