ADJUSTABLE HEIGHT: The ratcheting headrest table locking hinge allows for vertical lift function with 12 points of adjustment and a maximum operating arc of 105 degrees from horizontal, providing flexibility suitable for maximum comfortIDEAL FOR HIGH TILT-LIFT: The adjustable lift stand is ideal for all places where a tilt-lift is needed. It works great where you need to lift a horizontal surface at an angle and hold it in place. It made the table much more versatile and comfortable to work onEASY TO USE: With the convenient adjustable tip design, the ratchet stand can be easily installed and folded smoothly for your convenience. Lift to the desired angle and it locks into place. Lift past the top setting and it will fold down WIDE APPLICATIONS: The heavy duty ratchet table locking hinge can be used for drafting tables, desk tops, bed tops, drafting boards and much more, ideal for various DIY jobs around the house STURDY AND DURABLE: Made of heavy-duty zinc alloy with maximum corrosion resistance and durability, the ratchet table support hinge will provide constant support for coming years. Just buy with confidence as we are always here to provide you with 100% satisfactory customer service."