1. material: Made of sturdy and metal material, with a non-damaging structure, it not damage the bottom of the door when it is raised. 3.Easy to operate: The swivel-type door and board lifter is an easy to use and operate tool that allows you to lift boards or doors up to 2-3/8 inches with ease. 2.Rotation: It rises in parallel and rotates 360 degrees, which is convenient for positioning and fixing on the door, panel or gypsum board, improves the efficiency of wooden door installation. 4.Versatile Utility: An essential tool for a wide range of professionals, including carpet installers, carpenters, plasterers, locksmiths, and drywallers, eliminating the need for traditional chisels and bolsters., Weight: 1.35804753392 Pounds, Manufacturer: Aboiled