monitor arm keeps tilting down

Adjustable dual-monitor mount compatible with 17–33 inch monitors, each arm has a maximum load capacity of 22 lbs, includes a C-clamp and grommet hole

Mount-It! Monitor Stand With Freestanding Base and Height Adjustable Arm for Dual Monitors | Fits Monitors from 17" to 32" | Supports Up to 17.6 Lbs.

HUANUO Single Monitor Mount Arm for 13-35 inch Screens, Monitor Mount Holds Max 26.4lbs,Upgraded Adjustable Monitor Stand with USB.

Dual monitor stand, heavy-duty adjustable desktop monitor mounting stand, weighing up to 17.6 pounds, adjustable height, tilt, and rotation

HUANUO Monitor Arm for 13-32 In Screens, MechaSpring Monitor Mount, Fully-Adjustable Monitor Stand, Tool-Free VESA Mount, Max Load 19.8 lbs.

Mount-It! Keyboard Tray for Wall or Pole Mounting, Keyboard Mount with Spring Arm, Full Motion Arm for Easy Adjustments w/ Tilt, Swivel and Extension

Mount-It! Single Monitor Arm Mount | Desk Stand | Full Motion Height Adjustable Articulating Tilt | Fits 17 - 32 Inch | C-Clamp and Grommet Base

RadioShack Elemental Gaming Monitor Arm, 180° Swivel, Full Motion Tilt, Fits Up to 32" Monitors, Space-Saving Design, Holds Up to 20Kg 1606028

Dual Monitor Mount Clamp-On Monitor Arm with 2 Adjustable VESA Mounts Black Stand Steady

Mount-It! Single Monitor Wall Mount Arm | Height Adjustable Computer Bracket with Full Motion Gas Spring Arms | VESA 75 and 100 | Black

Z-EDGE MS05 Single Monitor MountStand Arm, Supports 22"- 40" monitors and 26 lbs, 360° Adjustable, Clamp & Grommet Base

JIONJOY Dual Monitor Mount: Gas Spring Arm Desk Stand with Clamp & Grommet Base for Computer Screens

HUANUO Height Adjustable Single Monitor Arm - For 13"-32" Screens up to 22lbs, Full Motion C-Clamp & Grommet Base, VESA 75x75/100x100mm

HUANUO Heavy Duty Monitor Arm for 49-Inch Ultrawide/Curved Screens, Full Motion Adjustable Monitor Mount, Holds 26.4lbs, VESA 75 X 75/100 X 100 mm

HUANUO Single Monitor Mount, 13-32 Inch Gas Spring Arm, Adjustable VESA Stand with Clamp & Grommet Base, Supports 4.4-19.8lbs Monitors

Quadruple Monitor Mount – Clamp-On Monitor Arm with 4 Adjustable VESA Mounts – Black – Stand Steady

Mount-It! Dual Monitor Arm Mount Desk Stand Two Articulating Gas Spring Height Adjustable Arms | Fits Up To 32" | C-Clamp and Grommet Bases | Silver