Go with the glow! 12oz glow cups are sure to make your signature drink that more exciting! Simply crack the capsule on the side of the cup and shake to watch the 12 oz cup GLOW! Add a fun and colorful accent to your party table or bar at your celebration. Perfect for holidays or any color themed event! Our glow glasses will glow one time only for about 4-6 hours. Mix and match colors to give your party a well thought out theme. Kids of all ages are sure to delight drinking out of our 12 oz glow cups.