1.Self adjusting to fit most sizes of paper and plastic cups 2.Use metal prongs which can not be broken 3.PVC Features:Self adjusting - to most water cups (3,4,4-1/2,5,6,7,& 8 oz. flat paper & plastic cups and 4 & 41/2oz. rimmed & rimless cone cups)Each unit has individual gift box package. Use three prongs to ensure each time pull one cup.Use metal prongs which can not be broken.Cup Dispenser ...