BANBERRY DESIGNS Rocking Displayer - Constant Swinging Back and Forth Motion - Adjustable Arm Moving Sign Holder - Display Lenticular Business Cards - Battery Powered - 10 Inch High Kinetic Swinging Arm Displayer with adjustable sign holder. Forward and back perpetual motion. Constant back and forth motion - attracts attention anywhere - display 3D lenticular cards. Perfect point of sale display stand for retail application or where attention is wanted. Make products stand out to sell more! ADJUSTABLE ARM: Holds a business card or display card between 2"H up to 6" in height. Great for postcards and collectibles. BATTERY POWERED: requires 1 "AA" battery (not included). 6 mos and more run time. SIZE: 10"H x 4.5"W