Atdec SD-POS-HA-B2B Dual Back-to-Back Display Accessory with 75x75/100x100 VESA Support for Displays up to 44-Pound, Black Dual Back to Back Display Accessory for the Height Adjustable POS Multi Mount AD-POS-HA Supports displays weighing up to 44lbs or 20kg with a VESA mounting hole pattern of 75x75mm or 100x100mm Features lockable quick-release head for easy display installation and quick replacement. Integrated ball-joint allows for independant tilt/pan and landscape to portrait orientation adjustment. Ball-joint incorporates tension control for touch-screen Support Height adjustable; 10 year warranty