The Weldmark by Shurlite® WM4501 is built to withstand the harshest of conditions and designed for the toughest jobs. It will easily light any flammable gas and is manufactured of heavy, high tensile strength steels, plated and galvanized. The WM4501’s triangular flint holder may be easily rotated for a fresh flint, and when all three flints are finally gone, the flint assembly is easily replaced with a Weldmark by Shurlite® Three flint renewal.