The unclog sink drain bladder uses power of water to clear slow and clogged drains in main drains and sewer lines, is very easy to use and can be apply frequently Solving common clogs caused by hair, soap scum, grease, and more; Suitable for most types of drains including sinks, tub and showers Suitable for drain openings with a diameter of 1 to 6inch, water expands to seal the pipe after passing through the drain bladder unclogger, pulsating through water pressure can quickly clear clogged drains Make of rubber, which can be apply for long terms in various environments, and have good wear resistance, is not easy to be worn and damaged, and can bear frequent use Important Tips: when using, connecting the drain cleaning bladder to a cold water faucet, do not use with hot water, it is best to insert it into the drain pipe at least 6inches for best result, Manufacturer: RGYBAO