Brand Features: Physical correction, safe and comfortable to use. Environmentally friendly material. Compact design, easy to use for daytime or nighttime wear. Strong suction helps improve results. How to Use: 1. Assemble the syringe puller and cup together (insert and tighten). 2. Place the cup over the nipple. 3. Pull the syringe to create suction and draw out flat or inverted nipples. 4. Remove the syringe while leaving the cup in place. This set includes only the Nipple Aspirator Puller. Other accessories shown in the image are not included. Specification: Material: PP + Silicone Inner Diameter: approx. 15mm / 0.59in Outer Diameter: approx. 30mm / 1.18in Color: As shown in pictures Quantity: 1 Set Note: Please allow 0–1 cm error due to manual measurement. Ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the actual color may vary slightly from the image. Thank you. Package Contents: 1 x Syringe 2 x Traction Caps 2 x Vacuum Valves