※The first 1-7 photos are from the online shop. Thank you for viewing. Eye Mask for Sleep, Good Sleep, Sleep Aid, 99.99% Light Blocking Rate (Recommended by Sleep Nutrition Instructors) 3D, Three-Dimensional, Lightweight, Eye Cover, aimeve Body Size 10.5 x 23.5 x 1.5 (cm) Material: Polyurethane, Nylon Care Instructions: Hand wash recommended Type: Adjuster Manufacturer: aimeve Product Description: 【Certified in Japan, 99.99% Light Blocking Rate】 The most important role of an eye mask is "light blocking." In modern times, small lights from charging devices and standby power can be noticeable in a dark room, making it difficult to achieve complete darkness just by turning off the lights. Also, even after turning off the lights, your eyes can adjust and start to perceive light after a while. It is important to pay attention to the light blocking rate when choosing an eye mask. 【Ergonomic 3D Structure, Comfortable to Wear】 The 3D structure reduces pressure on the eyes and is lightweight, making it comfortable to use. For working adults and travelers who want to recover their energy with a short nap, an eye mask is an essential sleep aid. It uses a headband type with an adjuster instead of ear straps, so you can freely adjust the tightness to your liking. 【Eye Relief, Rest】 Recently, with the increase in working from home and time spent at home, the use of smartphones and computers has increased, and more people are feeling eye fatigue. Wearing an eye mask blocks out light, allowing you to rest properly even during short breaks and give your eyes a rest. 【Carefully Selected Materials for Long-Lasting Comfort】 When used at night, you will be wearing it for a long time, so it is recommended to choose one with high breathability as well as light-blocking properties. It is a washable material that can be hand-washed, so you can use it cleanly throughout the year with regular care. 【Scratches and Stains】 I purchased it for a business trip and hand-washed it to bring with me, but I didn't use it, so it's unused. Since it has been opened and hand-washed, I will sell it to someone who doesn't mind that it has been handled once. Accessories: Storage bag only, the packaging bag has been discarded.