THESE ARE A RARE EARLY PLASTIC DATING FROM THE EARLY 1920s,THIS IS CALLED BANDALASTA, LINGA WARE PRODUCED IN BIRMINGHAM.THESE ARE BEAKERS, IT HAS A SCREW LID WHEN UNDONE THERE ARE TWO MORE BEAKERS INSIDE.THESE ARE IN GREAT CONDITION WITH NO DAMAGE TO ANY OF THEM.THE TALLEST ONE IS 4" HIGH THEN THEY GRADUATE.