The patented ROTOR-CONE technology in the Masha uses a low speed rotor to force ingredients through an outer mesh. This produces a perfect consistent mix in seconds. * The Masha works brilliantly on the following: All types of potatoes, guacamole and refried beans, pastry, cake mixes, baby food and a lot more! * The Masha is compact, easy to clean and safe for dishwashers. * A spring loaded mechanism locks the shaft when the power unit is detached, allowing the Rotor Blade to be removed with a simple turn and click. This means there are no places for ingredients to hide, making wash-up a breeze. * MANUFACTURER"S 30-DAY MONEY BACK GUARANTEE!!!