[Auto-Adjust Thickness]: The panel frame has a stepless auto-adjust function from zero (0) to 3/4" (zero (0) to 21mm). Once lifted, the clamp will automatically adjust to the thickness of the panel and clamp the material firmly. It is also very suitable for carrying signs (single or multiple, up to the full 3/4" thickness of the clamp). [Heavy Duty &; Non-slip]: The sign holder is made of high quality iron, which is hard, sturdy and durable, and cannot be easily deformed. It can carry a panel up to 330 pounds. The special rubber gripping pads installed on both the panels can prevent the material from sliding and protect the material surface from damage or marks. [Make handling easier and save labor]: This panel handling tool is ergonomically designed, allowing you to easily transport heavy or bulky panels without mechanical assistance. You can carry it by yourself, without the help of others. Let you do the material handling task more easily and effortlessly. [Comfortable handle, reduced risk of injury]: The handle of the panel holder is made of soft nylon, which is comfortable and wear-resistant and can reduce hand pressure. Since it does not touch the panel directly, it can prevent cuts and greatly reduce the risk of strains and injuries to your back, neck, shoulders, arms and hands. [The ideal panel handling tool]: The multifunctional panel holder is suitable for handling plywood, plasterboard, particleboard, glass panels and materials that are difficult to transport or too long to handle. be carried or lifted by one person. The carrier multifunctional panel is a unique lifting and handling tool, perfectly suited to the construction industry.