Duet showcases the exquisite shine of Polish glass in a stylish and striking collection. The 670ml Gin Balloon glass will add something unique to any set, with a contemporary feel and a touch of decadence. Each Duet shape is available gift-boxed in a set of two, so you can build the collection that suits your home or add the finishing touches to a more eclectic selection. Dishwasher safe Crystalline. Print is dishwasher safe.