Prices Volcanic block size 20*40 at a price of 1.35 Volcanic block size 15*40 at a price of 1.35 Volcanic block size 10*40 at a price of 1.35 Compressed insulating volcanic block size 20*40 at a price of 4.50 Strip insulating volcanic block size 20*40 at a price of 3.20 Hardy size 20*40 at a price of 3.70 Prices vary by region Prices include tax and delivery for quantities over 500 pieces