Each time you flush the toilet, cleaning and stain-resistant ingredients dissolve from the concentrated gel, leaving the inside of the toilet bowl sparkling clean. Johnson Scrubbing Bubbles Toilet Stamp Fragrance Black Stain Care, Main Unit 38g, Refreshing Citrus x 4 boxes set Each flush distributes cleaning and stain-resistant ingredients throughout the inside of the toilet bowl. ＜How to Use＞ Before use, clean the inside of the toilet bowl, then use this product. 1. Set the container: Fit the button of the gel container into the first notch (hole) of the handle with a click. 2. Press against the toilet bowl: Remove the cap and press the tip of the gel container firmly against a flat surface inside the toilet bowl. 3. Stamp the gel ● While pressing against the toilet bowl, push the button into the hole of the handle, pushing the handle towards the toilet bowl until it enters the next notch (hole). ● When you remove the gel container from the toilet bowl, one dose of gel is applied. ※ After use, close the cap tightly. ※ Shipping will be done by taking out the contents of two boxes and putting them in a compact box, as shown in the 9th image.