One side of the ice bag cooling eye mask is a high-quality PVC cover, and the other side is soft plush fabric. Adjustable headband, suitable for almost all sizes of heads. Cold and hot therapy: Freeze for 35 minutes or refrigerate for 1-2 hours. A cold eye mask can maintain the treatment temperature for approximately 20 minutes as recommended by the doctor. Place it in a microwave and heat it over medium to high heat for 10 seconds each time. It is very suitable for relieving puffy eyes, dark circles, headaches, migraines, and tired eyes. Choose from 11 soothing colors and add your school, sports team, organization, or company logo or information.The quantity exceeds 3000 pieces and the price is sea freight