Japanese-made sauna stones provide a comfortable sauna experience with excellent thermal conductivity. "The Charm of Domestic Natural Stone and Outstanding Durability" - Size: 5cm-15cm - Contents: Approximately 20kg - Country of Manufacture: Japan - Features: Good thermal conductivity This product is characterized by the peace of mind and excellent cost performance unique to domestic natural stone. ■ Sauna Stone Usage Guide ・First Use: Wash off the surface powder with water. ・Installation: Follow the stove's instruction manual and carefully stack the stones so they don't collapse. ・Heating Precautions: Gradually increase the temperature after ignition. ・Löyly Procedure: ① Pour a small amount of water and check the steam ② After confirming that the stones are sufficiently heated, start the full-scale löyly ・Post-Use Precautions: The stones are still hot even after the fire is extinguished. Please be careful of burns. ※ Please enjoy a safe and comfortable sauna time. ■ Proper Care for Sauna Stones 【Cooling After Use】 ● After use, move to a non-flammable place such as a firebrick or metal tray and let it cool naturally. ● Rapid cooling (such as pouring water) can cause cracking. 【Cleaning Method】 ・Wait until completely cool (check that it is not hot to the touch) ・Lightly brush off soot and dirt from the stone surface 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 ● For long-term storage, it is best to put them in a breathable box or cloth bag 【Special Notes】 × Do not use detergents or cleansers (may alter the stone) × Immersion in water when hot is strictly prohibited × Avoid stacking and storing (store them one by one) ■ Sauna Stone Usage Precautions 【Basic Precautions】 ● Prohibited for use other than the intended purpose ● Prohibited for use by children alone ● As they are consumables, replacement is required when they deteriorate 【Safety Measures】 ☑ Always wear heat-resistant gloves ☑ High-temperature state continues during/after use ☑ Be careful of breakage, burns, and fire 【Correct Usage】 × Prohibited from rapid heating/cooling × Prohibited from immersion in water × Prohibited from löyly 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.