With SNFFR from now on a contactless contact to the aromas is guaranteed, through our protected 3 hole system which is screwed onto the aroma bottle / can gets the sniffing a new level.
You can turn them easily and simply on your respective bottles / cans, (do not over-tighten that is not necessary for they are not made) also they do not require cleaning and care after the session simply turn off and put away.