Narvi Split-Face StonesSauna Stones, Split Face, 10 15cm, 44lbs The Narvi Split Face Sauna Stones made of olivine diabase are durable and produce great steam. These 10 15 cm sauna stones are packed in 44 lb boxes. Features Made of olivine diabase Split face shape Durable with high heat capacity Stones range from 4" to 6" (10 15 cm) Includes 44 lbs of 4" to 6" (10 15 cm) Split Face Sauna Stones Specifications Model 128937 Stone Weight Per Box 44 lbs (20 kg) Stone Dimensions