Elevate your drinking experience with these tulip-shaped Riedel tumblers, designed specifically to bring the best in your Gin & Tonic experience. Optical O series is based the same modern stemless design as the ever popular ‘O’ series, with an additional feature of curved glass creating a beautiful effect of ‘optical illusion’. Despite its eye-catching esthetics, the design is still less prone to accidents or breakage. Dishwasher safe and ideal for everyday use, this set makes a great gift idea on its own, or as an add on to our Gin Gift Boxes!