The Ultra-Premium Aluminum Portrait-to-Landscape TV Display Cart for 42 Displays features an aluminum alloy frame and counter tensioned display height adjustment. The durable metal fixture makes it easy to move flat panel screens up to 55 in size and weighing up to 44 lbs. Each black TV stand is VESA compatible and will fit most monitors with ease. The locking casters enable this unit to move the unit from place to place, then to stay in place, making it ideal for classroom or retail applications. This Premium cart allows for placement of a laptop or other media devices on the included AV shelf for additional convenience. Portrait-to-Landscape Rotation Cable Management Shelf Portrait-to-Landscape Rotation Portrait-to-Landscape rotation safely locks the display in place and allows for rotation when needed. Height Adjustment Adjust to the perfect height with the touch of a finger using the built-in counter spring system. Cable Management Organize wires to keep them out of view to maintain a clutter-free appearance. Shelf The included shelf can be quickly installed and adjusted as needed. Portrait-To-Landscape Rotation Ideal for Buy with Confidence With Monoprice's Lifetime Warranty you can rest assuredwe stand behind our products and our customers. Additionally, we offer a 30-day money back guarantee as well! If the product you purchase does not satisfy your needs, send it back for a full refund. Quality at a Fair Price Monoprice's rugged design and rigid quality control standards deliver high quality products at fair prices. Hassle Free Packaging Monoprice exists to bring simplicity, fairness, and confidence to technology choices. This product features recyclable packaging that is simple to open, cost effective, with minimal waste, and fully protective as it travels to you. Service Support You're never on your own with Monoprice products! We have a full team of friendly and knowledgeable technicians available to answer your questions, both before and after the sale. Contact our technical support team for questions about our products, troubleshooting, or even suggestions for products to fit your particular needs. Not to be outdone, our friendly and helpful customer service team is here to make your ordering, delivery, and any possible returns a quick and painless operation, from start to finish! Support Files User's Manual Oct 9, 2017