Feature: Washable, medical eye mask, can cover the right or left eye according to your choice. Made from high-quality polyester fabric, the skin uses a safe fabric. A soft, adjustable elastic cord that is more free to wear. Exquisite workmanship and smooth surface. The edges are cut smoothly and comfortable to wear. Special groove design, the eyes can be closed or opened inside, no pressure on the eyes, more comfortable. A simple and effective amblyopia and astigmatism treatment. Usage： Cover one eye and train another eye with poor vision. Cover your eyes with one eye or take turns to cover both eyes if necessary. Product specifications Overall size: 7.5 cm x 7 cm / 2.95 * 2.75 in (length x width) Groove size: 3.5 cm x 2.5 cm / 1.37 * 0.98 in (length x width) Material: polyester fabric Color:Random Type: Child or Adult Note: 1. Due to manual measurement, please allow an error of 1-3cm. Make sure you don't mind before bidding. 2. Due to the difference between different displays, the picture may not reflect the actual color of the item. Thank you! The package includes: 1 x eye mask The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.