I've been fermenting on and off for almost 30 years, but have seriously dived in to lacto-fermentation in the last couple years in a VERY BIG way. One of the most trying aspects of this type of fermentation is the requirement that your product must stay beneath the brine so that annoying and even dangerous mold doesn't ruin your ferment. There are plenty of excellent airlocks on the market, but what has eluded me until now is the perfect weight. It must not only keep your product submerged, it also has to prevent small bits of your ferment from sneaking past the weight. I love true pickles, and one of the biggest problems is finding something that will keep the pickles submerged even after they are in the fridge. The Pickle*Pusher solves ALL of these problems. The Pusher perfectly sits on top of your ferment, the adjustable rod keeps it centered and at the right level and when you are done with the fermentation process, the Pickle*Pusher can be left in the jar to keep your ferment submerged from top to bottom as you eat your way to empty. They are very affordable, too. If you are like me and have LOTS of jars in the fridge you can protect all of them from oxidation and spoilage. The products are built to last, too. I am SO very happy to have discovered Pickle Packer. I ordered the 6 pack and have ordered more! Customer Service is excellent, too. This is a true engineering marvel! Hurray!!!!