Enjoy a glass of wine while celebrating an important birthday milestone with this Color Changing Wine Glass. Sip in style for your 21st birthday celebration from this wine glass that features a hot pink base and confetti details with the number "21" in the center. When the glass gets below 68 degrees in temperature, you'll see the color of the number change! Holding up to 12 oz of liquid and crafted from high-quality glass, this stemmed wine glass should be hand washed to ensure longevity. Complete with a coordinating gift box, this wine glass makes the perfect gift for someone celebrating a 21st birthday.