Fits 17' to 32' Screens: Quad monitor mount holds most computers 17' to 32' in size and up to 17.6 lbs in weight (each) with VESA 75x75mm or 100x100mm mounting holes Articulation and Height Adjustment: Dual side pneumatic arms and fixed center brackets offer +90° to -90° tilt, 180° swivel, and 360° rotation for comfortable viewing angles. Dual pneumatic springs allow smooth transitions by counterbalancing the monitors