"Hold out your arm then, that's it" a tape measure then flew over to Harry and began to take note of the length of his arm from shoulder to finger, then wrist to elbow, shoulder to floor, knee to armpit and then for some reason around his head. "Now I am interested to see how this goes, half-blood customers are always the most fascinating. Muggle-borns are unpredictable but that in itself is something I can predict but half-bloods now they can truly be unexpected."