Made from Crystal glass giving them transparency, strength and durability. The shape and weight of this tumbler is perfect for whisky-based cocktails, or for simply enjoying spirits on the rocks. Inspired by the innovation and eclectic playfulness of Jason's cocktail bars, the Social barware collection mixes luxe materials with contemporary shapes, drawing on Jason's wealth of knowledge to provide the perfect tools for crafting cocktails at home. Each pair of glasses comes with a recipe card that can be used at home, with the tools, to create the cocktails invented by the world-renowned mixologists at Jason's bar - The Blind Pig. Recipe: New York Sour Ingredients 40ml American whiskey 10ml red wine 2 dashes bitters 20ml fresh lemon juice 10ml sugar syrup Garnish Twist of lemon peel 2 cherries Method Add all of the ingredients apart from the red wine into a cocktail shaker, fill with ice and shake hard for 15 seconds. Strain over fresh ice cubes into a double old fashioned glass, and then slowly add 10ml of red wine over the top. Garnish with the lemon peel twist and two cherries on a toothpick.