MADE OF LOVE STONE: Rose quartz yoni egg for women to strengthen pelvic floor muscles and for countering stress adult urinary Incontinence. Rose quartz is known as the "love stone". NO WAXING, VERY SAFE: Made of 100% natural and genuine pink rose quartz, manually carved and polished without using any chemical treatment nor any waxing. POPULAR SIZE: Medium size (43 x 30mm) (1.7x1.2 inch) for beginner, intermediate and advanced users, predrilled. Th most popular size. Large size (50x35mm) and small size (35x25mm) also available, please contact us. CERTIFIED: Comes with a certificate of authenticity, jewelry pouch, and user instructions. RELIABLE MANUFACTURER: Made by Polar Jade Enterprises Corp., the only company that makes full ranges of yoni eggs from nephrite jade, rose quartz and obsidian and understands the quality and safety requirements for intimate usage of yoni eggs.