Hand Soap Paste dissolves to make over a gallon of liquid hand soap. You can now refill your pumpers, foamers, soap dispensers, even mason jars with liquid hand soap. It fits any size standard mason jar neck opening. We understand bar soap is not for everyone. For those that like the ease and convenience of a liquid hand soap, but hate all the plastic bottle waste that comes with it; our Hand Soap Paste is for you.