Royal Massage Clamshell (Large) Hot Stone Heater w/12 Hot Rocks

Heats up to 24 stones at one time (24 small stones or 10 large stones) within 10 minutes. The unique shape is housed in a cool touch outer clam shell casing. Not hot metal on the outside to burn you. OPTIMUM TEMPERATURE - Heats to 122 degrees within 10 minutes (50 degrees Celsius)