Workrite Conform Dual Articulating Monitor Arms with Dual Arm Adaptor, screws and Cover Caps. Comes without mounting, sold separately depending on type of mounting preferred (desk clamp or wall bracket). I do not sell mounting. New, unused. No tools included (Allen wrenches for screws). 

• Enhance performance through ergonomic comfort
• Smooth lifting, maintenance-free gas spring (supports two 5–17 lb monitors)
• Expandable, interchangeable components ensure future adaptability
• Designed for fast, easy installation
• Easily route and conceal cables through the integrated wire managers
• Quickly folds down to provide users with maximum desk space

 

• Supports two monitors 5–17 lb each
• Maximum monitor height: 19.5″ (full range of motion)
• Articulation range: 13″ /li>
• Forward reach: 15.375″ /li>
• Stowed depth: 5.5″ /li>
• Monitor : Tilt: +90° /-45° ; Pivot: +/-90° ; Rotation: +/-90° /li>
• Standard VESA (75 mm & 100 mm)