The Twine® 876718027048 Glacier Rock® Cooling Stones are reusable beverage accessories intended to chill drinks without diluting them with melting ice. After preparation according to the manufacturer's instructions, place the chilled stones into a glass containing the selected beverage. The stones absorb heat from the liquid and gradually lower its temperature during serving. They are... https://www.bistrotorestro.com/glacier-rock-cooling-stones-by-twine-876718027048