These gorgeous Sky whisky stones were created by designer Aurélien Barbry for Georg Jensen. This 4-pack of whisky stones makes a perfect gift for anyone who loves spirits and liquors. Their timeless and soft design makes each piece look like a little cloud floating at the bottom of a glass. Each stone has been crafted from high-quality stainless steel that has been meticulously polished by hand. Place the stones in the freezer for at least two hours before use for optimal effect.