Scrubbing Bubbles Toilet Cleaning Gel takes care of the tough work for you by preventing the build-up of lime scale and toilet rings. It cleans and freshens with every flush. Simply use the dispenser to stamp a gel disc onto the inside of your toilet bowl. The discreet gel disc sits just under the rim. There's no need to touch the disc or the bowl with your hand, making Scrubbing Bubbles Toilet Cleaning Gel more hygienic than traditional clip-on bowl cleaners. The gel disc gradually dissolves with each flush, allowing a controlled release of cleaning solution and a fresh mountain scent. Each disc lasts up to one week and leaves no residue behind. Your toilet bowl will remain cleaner, longeruwith practically zero effort.