SHURLITE #5012X renewal flints are economically priced and designed for any of the shurlite family of three flint lighters, the #5011, #5021, #4501 or #4501B. In fact these replacement flints are guaranteed to fit perfectly on any SHURLITE three flint lighter and should fit on competitive products as well. The flints themselves are guaranteed to remain seated in the triangular flint holder and are larger than competitive products for longer life. Like all SHURLITE products, these flint renewals are made in America by proud American workers.