Tidoo Rings for Women Platinum-plated Hollow out Big Square AAA Zircon Material: Copper,AAA Cubic Zircon, Austrian Crystals. Micro Inlay Zircon; Three Times of Platinum Plating. Size available:7,8 Feature:Anti-allergic / Never fade / High Polished Maintenance: Clean with soft cloth; Avoid chemicals,friction; Avoid wear when sweating or bathing; Take off when sleeping.