Labor Saving Arm Board Jack Effortless adjustability: features a userfriendly pentagonal knob and streamlined handle for easy height adjustment during wall cabinet installations. This tool saves time and effort on your projects. Versatile application: can serve as a cabinet jack, drywall support, or for crown molding installations. It provides reliable support when lifting furniture, drywall, or shelves. Enhanced stability: rotates 360 degrees and offers lateral support up to 45 degrees, ensuring stable and precise installations. You can set the angle and height without needing extra help. Hands operation: acts as a flexible third hand, freeing you from holding heavy materials and enabling easier installation of upper cabinets, range hoods, and more. Complete tasks quickly and efficiently. Practical use scenarios Wall cabinet or range hood installation: hold and position cabinets or range hoods at the desired height, freeing both hands for fast securing. Drywall and crown molding work: support drywall sheets or crown molding while you align and fasten them. Furniture, shelving, or panel lifting: lift and stabilize pieces during placement and installation to improve accuracy and reduce strain.