The True 876718046056 Glacier Rocks® 6 Piece Soapstone Cube Set is a reusable beverage accessory for chilling drinks without dilution from melting ice. The six soapstone cubes can be prepared according to the manufacturer's chilling instructions before being placed in a serving glass. Once added, they absorb heat from the beverage and gradually reduce its temperature. Their cube shape allows them to sit inside the glass during serving. Remove the stones after use, clean them as directed.