Features: Adjustable printed circuit board holder frame. Solid metal base and ABS arm with spring-loaded clamp support 360-degree rotation, making it easy to flip the motherboard. Adjustable width and 4 clamping thickness sizes to accommodate various boards up to 300mm/400mm wide and up to 3mm thick. Equipped with 4 rubber feet under the base to ensure stability and prevent sliding on your workbenches. The Circuit Board Holder Frame offers 360-degree rotation, enabling you to view and work on your circuit board from any angle. Specifications: Material: ABS, Metal Size: Middle, Large Clamping ranges: 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 monitors, the picture may not reflect the actual color.