Features 1、HOT COOL HEALING: The terahertz stone in this eye cover exhibits excellent thermal conductivity and specific heat properties, allowing for quick heating or cooling to provide relaxing effects. 2、SAFE AND COMFORTABLE: Made with terahertz material, this eye cover is safe and healthy to use. Its safe surface and rounded bead design ensure no scratching or injury to the skin, offering a comfortable wearing experience. 3、ALLEVIATE EYE FATIGUE: Harnessing the energy of terahertz waves, this eye cover activates acupuncture points around the eyes, effectively relieving eye fatigue and discomfort. 4、IMPROVES EYESIGHT: The terahertz waves in the eye cover help balance the body electromagnetic field, activating the visual nerve and centers, promoting relaxation of the eye muscles, and improving eyesight. 5、ERGONOMIC DESIGN: Equipped with a rope, this eye cover ensures stability during use, not afraid of falling. Its ergonomic design conforms to your face for a perfect fit. Specification Item Type: Terahertz Stone Eye Cover Material: Terahertz Size: Approx. 14.5x6.5cm/5.7x2.6in Terahertz Substances: Terahertz contains various microelement required by the human body, which can strengthen the body, relieve eye fatigue Package List 1 x Terahertz Stone Eye Cover