Due to shipping costs, the box will be omitted. "Complete Blackout Hot Eye Mask" This eye mask differs from typical hot eye masks that "only warm the eyes." It offers deeper relaxation with its dual effect of "complete blackout × heat care." A completely dark space and moderate warmth create a "personal relaxation time" to free you from a stressful life. "Use for up to a week on a single charge" With its excellent energy-saving design, there's no need for troublesome battery replacements. It's economical because it's USB rechargeable, saving you about 5,000 yen annually compared to conventional disposable types! With the 3-level temperature adjustment function, you can choose the perfect warmth to suit your needs, from tired eye care to cold sensitivity measures. It's convenient to use anytime, anywhere, as long as you charge it – during breaks at the office, before bed, or even on your commute. Experience smart heat care that's reusable and eco-friendly, providing a comfortable temperature every time. The hot eye mask, made with skin-friendly silk, features an exquisite touch using high-quality silk material. The 3D design fits perfectly around the delicate eye area, with zero friction or pressure! Thanks to the excellent moisture absorption and release properties of natural silk, it's less likely to get stuffy and stays dry and comfortable even for long periods. It's a low-irritation design that's safe for sensitive skin, providing warmth in winter and coolness in summer. Unlike common non-woven materials, it offers a comfortable fit without stiffness or itching, and is praised for providing a relaxation feeling like wearing a luxury eye pillow. It comes with a removable, cleanable cover, maintaining cleanliness, and combined with the heat function, it provides the ultimate relaxation during sleep. The popular model has many users saying, "I woke up with it still on!" The fusion of natural materials and the latest features envelop tired eyes in ultimate comfort. Brand new, unused. Instant purchase welcome!