PIER 1 RED SWIRL SET OF 4 SHOT GLASSES

PIER 1 SET OF 4 RED SWIRL SHOT GLASSES. NOT SURE IF THEY HAVE EVER BEEN USED. SECOND PHOTO SHOWS HOW THE GLASS NATURALLY WAVES AT THE RIM WHERE THE RED IS. YOU CAN FEEL THE RED ON THE RIM SLIGHTLY. JUST HOW IT'S MADE.