Made of high-quality PP material, healthy and safe. Works best with olive oil or cream. Helps correct inverted or flat nipples, assisting in restoring natural nipple projection and confidence. Clinically proven to aid in treating inverted or flat nipples and includes a replacement air valve. Suitable for pregnant women and mothers. Recommended usage: 3 hours per day. Apply a small amount of skin cream around the nipple area when using the device to enhance suction. Correction time may vary depending on individual conditions. Results may take several months with consistent use; patience is advised. Package includes: 2 x nipple correctors Note: 1. Please allow slight measurement deviations due to manual handling. 2. Color may vary slightly due to differences in monitor displays.