Material: PVCUse:Cold compress: Refrigerate for 30-60 minutes or freeze for 15 minutesHeat compress: Soak in hot water for 2-5 minutes to remove. It is best not to heat the microwave directly to prevent cracking. Cleaning: Warm water or cold water, neutral soap scrub to clean, can not be machine washed, dry cleaned or twisted Package List: 1 * Eye Mask Note: 1. For external use, do not take internally.2. In case of breakage, flush with water.3. Overheating and underheating, use gasket.4. Rinse and dry after use.