City Ice Cubes from Orrefors, available as a set of 4, are made of stainless steel and can be used multiple times. Place the ice cubes in the freezer at least two hours before use and take them out when it is time to chill your drink. The ice cubes contain no toxic substances and neither absorb nor produce flavor. The liquid sealed inside the cubes consists of 99% water and less than 1% ethanol (pure alcohol). Designed by Martti Rytkönen.