Made-in-Japan sauna stones, providing 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 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 method: Follow the stove's instruction manual and carefully stack the stones so they don't collapse. ・Precautions during heating: 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-fledged löyly ・Precautions after use: 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 fire-resistant bricks or a metal tray and let it cool naturally. ● Rapid cooling (such as pouring water on it) can cause cracking. 【Cleaning method】 ・Wait until it cools completely (make sure it's 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 well-ventilated place with low humidity ● 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 breathable box or cloth bag 【Special Notes】 × Do not use detergents or cleansers (may alter the stone) × Do not immerse in water when hot × Avoid stacking and storing (store one by one) ■ Precautions for using sauna stones 【Basic precautions】 ● Prohibited for use other than the intended purpose ● Prohibited for use by children only ● Since they are consumables, replacement is essential when they deteriorate 【Safety measures】 ☑ Always wear heat-resistant gloves ☑ High temperature continues during/after use ☑ Be careful of damage, burns, and fire 【Correct usage】 × No sudden heating/cooling × No immersion in water × No 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.