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ECH espresso cream holder w/cold jars; Designed to hold bulk cream at a safe temperature and in conjunction with an espresso machine with an auto-frother attachment; Polished stainless steel base with foamed in place insulation and seamless plastic interior; Connects to espresso machines that are equipped with a hose that can be inserted into the 5/16" hole on top of unit; Includes (2) HOLDCOLD™ jars, (1) white and (1) black - use one while keeping second one in the freezer; ABS plastic jars are filled with a non-toxic refrigerant gel and hold 2 3/4 qt of cream below 41° for up to 12 hours; 2 year warranty; NSF certified