The Cobra® is designed to unclog the return pipe sinks, sinks, tubs and showers. Its galvanized steel spring wire measures 3/8" in diameter by 25' long and allows a maximum of flexibility. Its tubular metal handle covered in rubber is slightly curved to facilitate the use with rotation. It also has a connection length and an integrated boring head open coil screws. It/s connect-a-length feature allows additional lengths to snap on. This product is covered by a 1-year warranty.