The is for an ESI Edge Single Monitor Arm Mount in silver. The mount comes new in box. Each unit comes with the hex key and wrench to adjust and tension as needed.

• Finger touch dynamic height adjustment
• Recommended for worksurfaces 36.0” deep or less
• 12.09” height adjustment range
  • 7.68”–19.78” (low/high)
• 21.55” arm extension
• 3.22” arm retraction
• ±90° monitor tilt
• ±90° VESA rotation
• 6.5 lb.–17.6 lb. weight capacity
• VESA 75mm/100mm quick release
• 180° lock-out feature
• Desk clamp and grommet mount included