This 3D-designed eye mask boasts a 99.99% light-blocking rate, supporting comfortable sleep. - Light Blocking Rate: 99.99% - Design: 3D three-dimensional cut - Light Transmittance: 0% Color: Black Features: 3D three-dimensional, complete blackout, adjustable strap, lightweight Number of Units: 1 Number of Items: 1 【Domestic Certification (QTEC) ・ Pursuit of Zero Light】The essence of this eye mask lies in blocking out all light. Even the slightest light from charging or standby indicator lights can disrupt deep sleep. Don't you find that even in the dark, your eyes adjust and you can still sense a little light? This sleep eye mask achieves the ultimate "light-blocking" environment, preventing you from feeling any light. 【3D Three-Dimensional Structure & Nasal Bridge Synchronized Design】The uniquely developed three-dimensional cut does not touch the eyelids, protecting eyelash extensions and eye makeup. The "Synchronized Fit Structure" is adopted for the nose area, blocking light leakage from gaps. This next-generation sleep mask model, with 99.99% light-blocking performance, adds a pressure-free breathing sensation. It's the perfect design for a sleep mask. 【Eye Relaxation & Lightweight Design】Feels as light as a feather. Block out the light and enjoy deep rest for tired eyes from working at home. This is a rest eye mask with zero pressure for eyes that have been overworked all day. This lightweight eye mask brings sound sleep. 【Adjustable & Unisex】With an adjuster, it fits perfectly to any head size. It's a comfortable sleep mask that doesn't require size adjustment, making it ideal as an eye mask gift. It's a sleep eye mask with a custom-made fit for daily rest. 【Great for Various Scenes】From office naps to airplanes and bullet trains, this is a sleep aid item that transforms the "spare time" of a busy daily life into deep relaxation. It's convenient for travel and easy to use on airplanes. The item has been opened once for photography, but it is new and unused, so please rest assured. Also, since this is a product purchased personally, there is no warranty. Thank you for viewing.