Available in different sizes, offered sauna Lava Rocks are around 30 mm in thickness. These basalt stones have honed surface. These contain elements like magnesium, sodium, aluminum, calcium, titanium, iron, molybdenum etc. These have good gas absorption capacity and have smooth pores. Provided Lava Rocks have good thermal attributes and unique heat preservation capacity. These rocks have 1% moisture content and their loose volume weight is 520 kg/m3. These are non toxic, environment friendly and light in weight. These are cost effective.