Help keep your toilet bowl stain-free. Simply drop a tablet of the toilet bowl cleaner into the back of your toilet tank. With every flush, it cleans and deodorizes your toilet bowl and repels tough hard water, mineral and lime scale stains. Its a quick, hassle-free way to keep your toilet cleaner than ever. Helps keep your toilet bowl cleaner than ever Cleans and deodorizes with every flush Bowl water not harmful to children or pets Won't harm plumbing or septic systems Works great on toilet bowls Repels tough hard water, mineral and lime scale stains Scrubbing Bubbles Vanish Continuous Clean Drop-Ins Directions: Remove toilet tank cover Tear open pouch (only use one tablet at a time) Flush. Wait until water level is low and bottom valve is closed. Use pouch to drop tablet into corner of tank away from bottom valve opening or toilet mechanism Important: Wait 10 minutes before flushing When color disappears, its time for a new Vanish Drop-Ins.