Am I the only one who is so into thick ponytails as to appreciate the numbers associated with ponytail circumferences? When done properly, it is the measurement that reflects the real amount of hair mass / thickness. The classic demostration is to compare the hair mass of a 3" circumferenc PT with a mythical 6" cirumference PT. The 6"C PT has four times the amount of hair of the 3"C PT. I gaurantee we'd all be brought to our knees to hold in our hands a 6"C ponytail mass of hair. Even Mila's PT C is less than 6" at around 15cm.