Valley Teflon Ultra is bathed in Dupont Teflon before the fabric is weaved creating the only truly liquid resistant fabric. Valley Teflon Ultra is the same great cloth as the popular Mercury Ultra. The only difference is the Teflon Ultra is a 19oz weight woolen fabric that undergoes the same finishing process of the higher-priced worsted cloths. This unique stain-resistant cloth was created for the players who demand the speed, consistency and true rolls of a worsted cloth but do not want to pay the higher prices that come with it.