These plastic Animal Eyes are 20mm in size, and look very realistic. They come in three colors, so please indicate which color you want when ordering. They DO NOT have washers for attachment. Instead, they are meant to be glued in place. They are perfect for animals that have foam heads. Simply push them into the foam, applying glue to keep them in place. The price indicated is for 2 pairs of eyes (total of 4). FREE SHIPPING