Steel Wool, also known as wire wool, is manufactured from extremely fine filaments of steel which are extraordinarily flexible.
Steel Wool is often used by carpenters and craftsmen in order to prepare surfaces ready to be painted, varnished or lacquered. It is also really useful for applying wax polishes to woodwork as it aids the timber with absorption.
You have the option of ultra-fine, fine, medium and coarse available from SJ Tools.