Features: Adjustable printed circuit board holder frame. Solid metal base and ABS arm with spring-loaded clamp support 360-degree rotation for easy motherboard handling. Adjustable width and four clamping thickness settings accommodate various boards up to 300mm or 400mm wide and up to 3mm thick. Equipped with four rubber feet under the base to ensure stability and prevent sliding on workbenches. The circuit board holder frame offers 360-degree rotation, allowing you to view and work on your circuit board from any angle. Specifications: Material: ABS, Metal Size: Middle, Large Clamping range: 0–300mm (Middle), 0–400mm (Large) Package Includes: 1 Piece PCB Holder Note: Please allow 1mm error due to manual measurement. Due to differences between monitor displays, the picture may not reflect the actual color.