Toast to a friend or family member's 21st birthday with a beverage garnished with this fun "21" designed charm. Numbered silicone charm fits inside a Charmers drinking glass or stemless contour glass (both feature a post in the bottom of the glass to hold the charm front and center). And with the unique charm on display, it's easy to identify the drink among all the other glasses on the table. This colorful charm makes a great 21st birthday gift when paired with a coordinating glass (not included).