• Comfortable Material: Made with a unique, soft, non-toxic, odorless, and reusable gel. The thickened gel design keeps the product cold for longer and remains soft after freezing. The outer fabric is breathable and skin-friendly, providing a silk-like feel. • Ergonomic Design: The cold gel eye mask has a one-layer design that completely wraps around the head, offering a large coverage area without pressing on the eyes or ears. The V-shaped hole fits the contour of the nose, applying pressure evenly and effectively blocking light. • Dual Purpose Function: Quickly relieves headaches, bruises, eye swelling, and sinusitis. It can also be used as a sleep mask to block light while sleeping. • Easy to Use: For heat therapy, heat the mask in the microwave for 60 seconds. For cold therapy, freeze it in the refrigerator for 20 minutes. After use, store it in a plastic bag to prolong its lifespan. • Versatility: The elastic design allows it to be used on any head circumference, making it suitable for people of all ages. It is easy to carry and can be used on various occasions such as at home, in the office, during travel, and outdoors.