In Japan, a cruet filled with vinegar, soy sauce, etc., has a small hole in the bottle, and a button controls the switch. When you pour it out, you can use your fingers to press the button. The outside air enters the bottle and the contents can flow out. When the finger is loose, the button will block the air inlet automatically due to the action of the spring, and the contents cannot flow out.
As China Dry Erase Pockets, Dry Erase Whiteboard manufacturer and supplier, Mifia has a wealth of experience in the production of write and wipe off board, weekly or yearly schedule planning design or whiteboard, whatever type you want, we can customize as your demands.
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