Glass eyes on a mini wire (10 pieces) Pupils on each eye will vary slightly due to the process by which the eyes are made. Wires vary from 3mm to 10mm long aprox, and are randomly packaged. Common uses are in sculpture, fishing lure making, and doll making. To use the sewing process with these items, merely twist the wire backing with a set of round nose pliers making sure to secure the loop tightly. Sew through the loop. You can use a coverstitch to secure even more tightly into place.