Up & Down is a series of brands with different types of adjustable desks and office products. Crank height adjustable tables use a hand held crank to adjust the height of the table. An electric table with 1 motor uses a single motor to adjust the height, while an electric table with 2 motors uses dual motors to adjust the height on different sides of the table. Twin-motor tables are usually more powerful and can hold larger loads compared to single-motor and crank tables