RIP THROUGH TOUGH STOPPAGES WITH THE UNIQUE CLOGCHOPPER#8482; MULTI-FUNCTION CUTTING TOOLS. SIX SELF-SHARPENING BLADES DIG INTO ENCRUSTED DEBRIS AND ROOT MASSES EASILY GRINDING UP STOPPAGES SCALE AND CRYSTALLIZED URINE WITHOUT RISKING PIPE DAMAGE. THE SPHERICAL DESIGN MANEUVERS AROUND TIGHT BENDS AND TRAPS THOROUGHLY AND SAFELY CLEANING METAL PLASTIC AND CLAY PIPES. AS IT SPINS IT ALSO SELF-SHARPENS AS IT SCRAPES ALONG THE PIPE WALLS. IT'S EXCELLENT FOR CLEARING STACKS DOWNSPOUTS MAINS AS WELL AS FOR DRAIN LINING JOBS. WARNING: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov - Nickel (Metallic)