These glitter-filled double walled acrylic tumblers from Ban.do will create the illusion that your sparkling wine is literally sparkling. They’re also great for serving drinks at parties or just being the world’s prettiest water cup! The floating glitter has a snowglobe effect and moves as you move the glass. The tumblers measure 11.8 x 9cm and are bpa, lead, and phthalate free. To keep their gorgeousness, hand wash them only. Don't even think about putting them in the microwave!