These fun colored glasses can be used for all kinds of different drinks. The crystal glass is of good quality, so it always stays clear. The colors under the glasses are not only fun, but also functional. You'll never lose your own glass again. Use the glasses for water, soft drinks and cocktails. They can be used for any occasion!

Riedel introduced this optical edition of the Happy O set to add the beautiful optical effect to their collection Riedel Performance.

The beauty is in the subtlety, as the color is visible only in the base of the glass and does not disturb the true color of your drink. Their bright, playful appearance makes them the ideal companion for parties, picnics or everyday enjoyment. This set includes four tumblers with an optical effect and different base colors: azure, yellow, pink and carmine.