Silicon component is placed at the back of the charm in order to prevent the charm from slipping off. This is sold as a single earring. If you would like to have a pair, please purchase two. **Size** Charm S: approx. 12mm (0.47in) x 12mm (0.47in) x 1.3mm (0.05in) Charm L: approx. 17mm(0.67in) x 17mm (0.67in) x 1.3mm (0.05in) **Material** Sterling Silver **Finish** Oxidized **Shipping Times** `In stock’ products will be dispatched within 5 working days, and ‘made to order’ items will be dispatched within 10-12 working days (Monday through Friday except for public holidays and company holidays).