Although unused, the item has been opened for inspection. How about it for those uncomfortable summer nights? 【Three-Level Temperature Mode】 You can adjust it to your preferred temperature. It has an automatic power-off function after 30 minutes. Safe to use before bed. 【Suitable for Both Warm and Cold Use】 With a metal fiber heater and a gel cold eye mask, it can be used warmly in winter and coolly in summer for comfortable use. 【Usable on Both Sides】 The outer side is made of velboa fabric, which is soft and warm. The inner side is made of 100% cotton fabric, which feels good against the skin and is breathable. 【Comes with a Storage Bag】 Comes with a storage bag made of satin. It can be put in a handbag or bag and is easy to carry. Warm and Cold USB Hot Eye Mask with Storage Bag, for Winter and Summer, Usable on Both Sides, 10-42, for Cold Sensitivity