Quad LED LCD Monitor Stand up Desk Mount Extra Tall 31.5 inch Pole Heavy Duty. Compatibility - Quad monitor mount ideal for most screens up to 27" (not for three 27"curved monitors in horizontal position) and 22lbs each with 75x75mm or 100x100mm backside mounting holes. Fully aticulation - Rotate 360°, tilt ±90° up and down, swivel ±90° left and right (middle plates tilt ±45° up and down, swivel ±45° left and right), extra tall height adjustment along the center pole. Two install options - C-clamp and optional grommet base (fits desk up to 4 thickness) save your valuable desk space.Integrated cable management - Keeps your desk tidy and clean by organizing your power and AV cables in detachable cable clips. Easy installtion - Step-by-step user manual and organized hardware kit for hassle free mounting. As our valued customer, we will do our best to make sure the product you receive arrives to you on time and as expected.