Sold as 1 Each. Raise your monitor to a comfortable viewing height with this triple-monitor desk mount. Weight capacity: 22 lbs. per arm. Supports most flat panel monitors up to 32' for versatile use. Compatible with VESA 100 x 100mm mounting patterns. Supported by manufacturer's limited lifetime warranty. Made of heavy-duty steel and comes in black. Height-adjustable design allows you to turn your workspace into a sit-stand desk. 90-degree tilt feature allows you to reduce glare and eyestrain. 360-degree independent plate rotation allows for easy setup for portrait and landscape orientation.