How is the soy sauce dispenser they have in japanese sushi chians called?

I went to Japan last summer, and whenever i went to a sushi place they always had this type of soy sauce dispenser that even if you tilt it nothing will come out unless you press on the rubber cap. Does anyone know what they’re called? I want to buy one but i can’t seem to find it anywhere

https://www.reddit.com/r/japan/comments/17xyrfm/how_is_the_soy_sauce_dispenser_they_have_in/