Fits 17' To 32' Screens: Dual monitor mount fits most computer monitors 17' to 32' and up to 19.8 lbs (each) with VESA 75x75mm or 100x100mm mounting holes. Secures to desks (up to 3.3' thick) with heavy-duty C-clamp or optional grommet mount Articulation and Height Adjustment: Flexible arms offer +90° to -90° tilt, 180° swivel, and 360° rotation for comfortable viewing angles. Dual mechanical springs provide smooth height transitions by perfectly counterbalancing the weight of your monitors