Made-in-Japan sauna stones provide a comfortable sauna experience with excellent thermal conductivity. "The Appeal of Domestic Natural Stone and Outstanding Durability" - Size: 5cm-15cm - Contents: Approximately 20kg - Country of Manufacture: Japan - Material: Natural split stone (domestic) *Hard sandstone (regular component testing is conducted) - Quarry: Suzuka City, Mie Prefecture This product is characterized by the peace of mind and excellent cost performance unique to domestic natural stone. ■ Sauna Stone Usage Guide - First use: Rinse off the surface powder with water. - Installation method: Follow the stove's instruction manual and carefully stack the stones so they don't collapse. - Heating precautions: Gradually increase the temperature after ignition. - Loue procedure: ① Pour a small amount of water and check the steam ② After confirming that the stones are sufficiently heated, start the loue in earnest - Post-use precautions: The stones are still hot even after the fire is extinguished. Be careful of burns. ■ Proper Care for Sauna Stones 【Cooling after use】 ● After use, move to a non-flammable place such as a fire-resistant brick or metal tray and let it cool naturally. ● Rapid cooling (such as pouring water) can cause cracking. 【Cleaning method】 ・Wait until completely cooled (make sure it's not hot to the touch) ・Lightly brush off soot and dirt from the surface of the stone with a soft brush ・For stubborn dirt, wipe lightly with a tightly wrung wet cloth ・Dry completely in a well-ventilated place 【Storage precautions】 ● Choose a place with low humidity and good ventilation ● An ideal place is one that is not exposed to direct sunlight or rain ● When storing for a long time, it is best to put them in a well-ventilated box or cloth bag 【Special Notes】 × Do not use detergents or cleansers (may cause the stone to deteriorate) × Immersing in water when hot is strictly prohibited × Avoid storing stacked (store one by one) ■ Sauna Stone Usage Precautions 【Basic Precautions】 ● Prohibited for use other than the intended purpose ● Prohibited for use by children only ● Since it is a consumable item, replacement is required when it deteriorates 【Safety measures】 ☑ Always wear heat-resistant gloves ☑ High temperature continues during/after use ☑ Be careful of damage, burns, and fire 【Correct usage】 × Prohibited from rapid heating/cooling × Prohibited from immersion in water × Prohibited from loue with a large amount of water 【Tips for handling】 ● Be careful of impact when moving ● Natural cooling is basic ● Regular condition checks are recommended ※ Please be sure to follow these for a safe and comfortable sauna experience.