Description The eye patches are made non-woven gauze material, washable and durable, these eye patches in black color that matchs your most glasses. The patches fit for most of the medium and small glass frame for kids, they can train the lazy eye to work properly. The eye patches are suitable for lazy eye, strabismus and amblyopia, they are easy to use just slide this patch on over the glass stem and wrap it around to cover the lens. Feature Color: Black. Material: Non-woven fabrics. Size: 10 x 4.5 x 0.2cm/ 3.94 x 1.77 x 0.08inch. The eye patches are suitable for lazy eye, strabismus and amblyopia.They are easy to use just slide this patch on over the glass stem and wrap it around to cover the lens.The eye patches are made non-woven gauze material, washable and durable, these eye patches in black color that matchs your most glasses. The patches fit for most of the medium and small glass frame for kids, they can train the lazy eye to work properly. Packing list12 x Mudder Eye Patches Black Eye Patch for Glasses for Lazy Eye Amblyopia Strabismus for Children - Size M (Black)