Our 12 oz. ORANGE, BLUE, GREEN, RED, YELLOW PINKor PURPLE glow drink glass will light the drinks at your party or bar.Just squeeze the bottom of this plastic cup to start the Glow. Priced and sold by the individual piece but master packed in sleeves of 24 per color. Please order in any quantity. To Activate the Glow Cup: Please find 1 Colored Ampule on either side of the Glow Cup located on the lower half extending up about 1.5 inches. Squeeze the cup very firmly in the middle of the ampule. It will rupture, activating the glow process. Once glowing, DO NOT repeat this process. Item will glow 1 time only.