Not to deliver it, but to take the package or envelope, check the address, then put it in a pile to go to a distribution center in the appropriate, proximal zip code of its destination. That done, the mail might wait up to a day to be flown out, two days at times, then another day to be delivered by ground.
Some breeds of dogs have a natural curl or bend to their tails. But others have been selectively bred to take this curl to an extreme, cork-screw shape. Dog breeds with curly tails referred to as screw tails include Boston Terriers, Pugs, Bulldogs and French Bulldogs.
Type 3 is curly hair known to have an S-shape. The curl pattern may resemble a lowercase s, uppercase S, or sometimes an uppercase Z. This hair type is usually voluminous, climate dependent (humidity = frizz), and damage prone.. Lack of proper care causes less defined curls.