I received this as a gift, but I already bought the same item, so I'm selling it. It relieves eye fatigue and is very relaxing. 【Soft Fabric】 Made with soft memory sponge material, it has excellent breathability. It's soft and comfortable, foldable, small in size, and lightweight. 【Adjustable Band】 You can adjust it to your preferred length for a comfortable fit. 【Excellent Light Blocking】 It has excellent light-blocking properties, making it ideal for naps. It features 4-level temperature adjustment (40°C to 55°C). Timer settings: 0 minutes / 15 minutes / 30 minutes / 60 minutes Temperature settings: 40°C / 45°C / 50°C / 55°C 【As a Steam Eye Mask】 This product can also be used as a steam eye mask. Spray water onto the part that touches your eyes a few times using the included spray bottle, and heat it at 50°C for about 5 minutes. After the surface moisture has dried, reset to your preferred temperature and use it to experience a warm and gentle steam eye mask. 【Reusable】 This product has a zipper composite structure, and the eye mask cover is washable. This product can be used repeatedly with USB charging (average of 2000 uses), making it economical compared to disposable products! 【Set Contents】 Hot eye mask, ice eye mask, USB cable with remote control, earplugs, dedicated storage bag, spray bottle, Japanese instruction manual