Prong Set Crystal Gem Front Facing Hinged Navel Clicker. Inner Diameter: 10mm x 7.5mm. Sleek Profile – Designed with a slim and elegant structure for a stylish and minimalist look. Comfortable Wear – Lightweight and smooth edges ensure all-day comfort without irritation. Clicker Mechanism – Easy-to-use clicker closure allows for secure and hassle-free wear. Durable Material – Made entirely from 316L steel Used in healed piercings only.