Please adjust the force setting according to the instructions on the top half of page 9 of the manual. If you have any questions, please feel free to contact us. Ergonomic Viewing for Fireplace Setups：This height-adjustable TV mount is specifically designed for use above fireplace mantels. Its 25.55" pull-down range allows you to effortlessly lower the TV to a comfortable viewing height, significantly reducing neck, back, and eye strain for a truly relaxed viewing experience. Universal Compatibility for 43" to 80" TVs：Designed to fit most TVs from 43-80 inch and up to 80 lbs. It supports a wide range of VESA patterns from 200x100mm to 600x400mm (including 100x100, 200x200, 300x300, 400x400, etc.) and accommodates wall studs spaced up to 24" apart. Please verify your TV's VESA pattern and weight before purchase to ensure a perfect fit. Full-Motion Flexibility for the Perfect Angle：Enjoy complete viewing control with multiple tool-free adjustments. Features include smooth height adjustment, +/-5° tilt, and ±25° swivel (angle varies by TV size). The built-in +/-3° post-installation leveling feature guarantees a perfectly straight picture every time. Effortless & Secure Spring-Assisted Lift：The integrated spring counterbalance mechanism makes raising and lowering your TV remarkably smooth and easy. Spring tension is adjustable to perfectly match your TV's weight, while the robust steel construction ensures reliable, long-lasting performance and safety. Thoughtful Packaging & Dedicated Support：Includes all necessary hardware for easy installation. For your safety, concrete anchors are not included in the standard package to prevent misuse on unsuitable walls. If you require 10X50mm concrete anchors for concrete/brick walls, please contact us—we are happy to provide them. Our professional customer service team is always ready to assist you. Pull Down TV Mount for Fireplace, Height Adjustable for Most 43-80 Inch TVs, Max VESA 600x400mm up to 80lbs, Full Motion Articulating Above Mantle Installation