1. About the set - It is made up of acrylic single flared stretch rods, bone rods, and silicone double flared flesh tunnels. 2. High Quality Materials: Made from high quality silicone and ultra-light acrylic, designed for comfortable wear with minimal pressure. Durable construction. The ultra-thin design is ergonomically shaped to fit the ear comfortably and reduce irritation. The soft material conforms to the ear and is lightweight for discreet wear. Suitable for sensitive skin. 3. Unique design: Featuring ultra-thin silicone, these pieces are suitable for extended wear, including during sleep. Designed to stay securely in place with two O-rings to help prevent slipping. Gentle on ears. 4. About the set - Includes acrylic single flared expanding bars, bone rods (1.6mm-12mm), and silicone double flared flesh tunnels (3mm-12mm). Note: Expanding rods and bone rods do not include 12mm size. 5. Benefits for the ears - The thin silicone material offers good skin compatibility, allowing for comfortable wear, including while sleeping. Lightweight and designed to fit the ear naturally, minimizing discomfort. Safe for prolonged use.