TV Compatibility: Supports 13' to 60' screens weighing up to 55 lbs with VESA 75x75, 100x100, 200x100, 200x200, 300x200, 300x300, 400x200, 400x300, or 400x400mm. Holds most LCD, LED, OLED, 4K, Smart, Outdoor, Flat, and Curved TV types -Patented- Mobile Trolley Cart: The 19.5 x 14.5 base features 4 locking casters to make the cart stationary or mobile when desired. Perfect for homes, businesses, trade shows, and classroom settings