Sterling silver hoops with hand-blown glass mushroom and freshwater pearls. This item is handmade in London, UK. Hoop dimensions: 18mm Materials: sterling silver Caring for your piece Do not expose your jewellery to alcohol and chemicals, such as hand sanitizers and perfumes. To help protect the durability and quality of your jewellery, remove your jewellery when you shower, bathe or engage in heavy exercise, particularly when swimming in the sea or a chlorinated swimming pool.