Specification:Item Type: Gel eye coverMaterial: GelProduct Use: Anti fatigue, prevent dark circlesHow to Use:Hot compress:Method 1: Heat the product in a microwave oven or cover the product with water, set on medium power for 30 seconds, until it reaches the desired temperatureMethod 2: Put the product in hot water of about 80‑90 celsius for 3‑5 minutes.Cold compress:1. Place the product in the refrigerator for 2 hours before use. 2 Wrap the product with a towel to isolate the cold and avoid direct contact with the skin to prevent frostbite.Package List:2 xGel Eye Covers