Hey there! If your child needs to wear an eye patch with their glasses, these Newcotte patches are actually pretty great. You get 12 different ones in the pack, each with these cute butterfly and assorted patterns that kids actually like wearing - which let's be honest, is half the battle right there. They're made from polyester and cotton blend so they're soft, breathable and don't make kids all sweaty and uncomfortable. The inside has black fabric that does a really good job blocking light, which is obviously important for treatment to work properly. Each patch measures about 4 x 2.5 inches total, with the lens part being roughly 2.5 x 2 inches - perfect for most kids' glasses. They're lightweight too, so they don't add much pressure on the nose bridge. You can use them on either left or right eye, though I should mention that with some patterns they might appear upside down if worn on the left eye depending on the design. They're super handy for school, travel, playing outside - basically anywhere your kid goes with their glasses. Plus having 12 means you can rotate them and always have clean ones ready, or even share with siblings or friends. The material is durable enough for multiple uses, and they actually help protect the glasses lenses from scratches too. They've got this simple design that's easy to put on and take off, and the patterns are vibrant enough that kids feel cool wearing them rather than self-conscious. Definitely makes the whole eye patching experience way more positive for everyone involved!