Material: brass, 925 silver post, wax rope Size: 5.6 (Max length) x 3 (Max width) cm *All Green Beetle products are made with hand. Unlike machine manufactured brass, handmade gives a unique touch to every piece of work. About the Amazon princess studs I made this pair with hand-hammered brass and wax rope to give an earthy texture. The semicircle shape is simple yet stylish. Care and maintenance for brass jewelry All brass products from The Green Beetle are polished to prevent from tarnishing for most usage. However, exposure under water or oxygen (or contact with sweat, grease, lotion, etc.) still effects its shine. Here we provide four ways as reference: 1) Use a polishing cloth to rub your brass. 2) Use a toothbrush and gently brush some toothpaste on your brass, later, clean it with water and dry it after. 3) Mix some lemon juice with baking soda at 1:1 portion. Rub your brass with the mixture until it’s clean. In the end, rub it with a wet cloth and keep dry. 4) Dip a cloth with brass polish, then rub your brass with until it’s nice and shiny. About our packaging All of our products are pack in recycled-craft paper boxes.