Neat drinks, uncut. Our set of six state-of-the-art freezable soapstone cubes is a game-changing way to keep libations ice-cold without watering them down. The soft soapstone neither scratches glassware nor affects the flavor of your drink. Instructions: Rinse before first use. Freeze a minimum of 2 hours before placing in drink. To clean, rinse thoroughly with water.--Set of 6-Made of soapstone-Freeze 2 hours before use-