Adjustable width and four clamping thickness settings to accommodate boards up to 300 mm/400 mm wide and up to 3 mm thick Adjustable printed circuit board holder frame Solid metal base and ABS arm with a springloaded clamp, 360 degree rotation for easy motherboard positioning Four rubber feet under the base provide stability and prevent sliding on workbenches Key benefits Wide compatibility: clamps a broad range of boards with four clamping thickness settings and adjustable width up to 300 mm/400 mm wide, up to 3 mm thick Precise positioning: 360degree rotation on the holder arm allows you to orient the motherboard exactly where you need it Durable construction: solid metal base combines with an ABS arm and springloaded clamp for reliable, long lasting use Stable and non slip: four rubber feet keep the unit steady and prevent movement during work Applications and use scenarios Soldering and rework on PCBs: position and orient boards up to the size and thickness specifications for easy component access Prototyping, assembly, and testing: hold boards securely during assembly steps or during measurement and test procedures and inspection in workshops or classrooms: stable base and adjustable frame support precise procedures without board shifting