Dizaul Beverage Chilling Stones Whisky Chilling Rocks, Made of 100% Pure Soapstone-- Set of 9 A set of 9 Dizaul Stones Made from Natural Soapstone Preserve the Taste of your Favorite Drink It cools your drink perfectly without the dilution from melting ice. Easy to use: just wash the Rocks and place them in the freezer to use them at anytime Dizaul Stones made from 100% Soapstone,which maintains its temperature for long periods of time, and is Regarded as Safe (GRAS) by the FDA.