NOTE: This monitor mount only fit monitors which own the following three specs at the same time: 1. Screen size: 13" to 27" 2. Weight capacity: 4.4 lbs to 17.6 lbs 3. Must have VESA mounting holes and the VESA pattern is 75x75 or 100x100mm. Main Features Full Motion Triple Monitor Mount - The plate/monitor can be 180° swiveled and 180° rotated; - The joints in the middle part of the arm can be 360° swiveled; - The lowest joint near the pole can be 180° swiveled; - The plate/monitor can be tilted from -90° to +90°. Counterbalance Height Adjustment The internal counterbalance gas spring adjusts to the weight of your monitor creating a suspended free-float effect that allows you to instantly adjust the height of your monitor without the use of tools. The weight adjustment bolt is located on the back of the mount and we include the hex tool to make this adjustment. Integrated Cable Management The easily detachable integrated cable management system helps keep AV and power cords out of sight and organized. Allow wires to move freely while changing screen positions and keep cable neat organized with detachable cable clips on the arms. Detachable VESA Plate Mounting your monitors is a simple process with a detachable VESA bracket plate. We provide a step-by-step manual and the necessary tools & hardware for assembly. Two Installation Methods Option 1 (Clamp): desk/table thicknesses is 0.39 - 3.15 inch. Option 2 (Grommet): desk/table thicknesses is 1.97 inch or less. Package Include: 1. MOUNT PRO Single Monitor Gas Spring Mount x 1 2. Mounting Hardware Kit x 1 3. User Manual x 1