VIVO Single LCD Monitor Desktop Mount Stand/Black Height Adjustable Deluxe Gas Spring Arm for 1 Screen up to 27" (STAND-V001B) COMPATIBILITY - Fits most screens up to 27 in size and 13.2 lbs in weight with VESA 75x75mm or 100x100mm mounting holes. Mount to your desk with heavy duty C-clamp or optional grommet mount GAS SPRING ARM  Tool-less monitor placement with perfect counter balance presentation in all directions FULLY ADJUSTABLE  Mounting arm offers 90 tilt, 90 swivel, and 360 rotation. Monitor can be placed in portrait or landscape shape EASY INSTALLATION  VESA face plates with open top slots makes installation a simple process WEVE GOT YOU COVERED - Sturdy steel design is backed with a 3 YEAR MANUFACTURER WARRANTY and friendly tech support to help with any questions or concerns