Cotytech Dual Desk Mount Spring Arm Quick Release with Clamp Base (DM-CDSA2-C) Supports up to 2 x 27-Inch LCD monitors; desk-mountable, available in clamp base and grommet base; Solid Aluminum die-cast construction; easy installation and dis-installation; swift and easy movements and adjustments Clamp table thickness: 0.79-Inch to 2.36-Inch (20-60mm);grommet table thickness: 0.79-Inch to 2.36-Inch (20-60mm), Hole Diameter: 0.39-Inch to 1.97-Inch (10-50mm) Weight Capacity: Supports 4.4 - 19.8lbs (2 - 9kgs) for each monitor; Tilt: 105; Rotation: 360 Quick mount & quick release designs at 3 connecting points: stand, spring arm and monitor end; neat and efficient cable management Maximum adjustment rendered by tilting, swiveling, pivoting and dynamic height adjustment; Clean look with minimal hardware visible from underside of work surface; Space saving with its compact design; Maximum productivity and supreme ergonomic comfort