For the temporary marking of metal surfaces during welding and fabrication. Made of all natural soapstone for superior marking. Marks will not contaminate welds and are easily removed. Soapstone is packed 3 one gross boxes per case to prevent breakage during shipping. Broken cases cannot be provided for this product.SEPTLS43480131. TLS43480131. Markal Markal Soapstone Markers - 80131.