This donut filler power base has LED readouts that provide clarity when looking at orders. The digital entry keypad makes it easy to enter the correct information. Reverse pull back rrevents dripping after you are done filling. The hopper use FDA approved polycarbonate. The donut filler power base works with cream cheese, custard, jelly, molasses, peanut butter, salad dressings, tomato paste and many similar materials.