 You're asking me? Half an inch. Good. Don't move. Hey now, watch the flame. Just do what I tell you. But careful. I gotta get the glass softened before you push the wire right on through. Through what? The glass. Don't get sore. I gotta switch to a hotter flame. Hotter? The lighter flame is for starting and again at the end in order to prevent strings. String causes cracks and we'll get one of these things blowing up in our face. It will? You see that red dot forming? Is that bad? Means we're in business. You ready?