1. Adjustable Soldering Clamp Holder 360° Rotation Printed Circuit Board Repairing 2. Welding Assistance Fixture: This adjustable tool provides assistance in holding and fixing various types of mobile phone motherboards and circuit boards during assembly and disassembly for electronic components, computer motherboard repairs, instrument maintenance, and circuit board soldering/disassembly. 3. Multiple Sizes Clamping Jaws: Equipped with five clamping jaws of different sizes, this fixture eliminates displacement issues and allows for secure clamping. The jaws correspond to various thicknesses of motherboards 4mm, 2mm, 1.8mm, 3mm, and 2mm, compatible with a wide range of boards. 4. 360° Rotatable Head: The rotatable head design enables easy adjustment to fix the motherboard at the desired angle, convenient and precise operation while working on intricate soldering or repairs. 5. Adjustable Opening Distance: With an adjustable opening distance, this fixture can accommodate various sizes of motherboards. It can clamp motherboards up to 200mm, making it suitable for a wide range of motherboard and circuit board sizes.