Material: Made of Stainless Steel. Good load-bearing performance, protecting the grip head adapter corrosion-resistant and durable. Features: The grip head for C stand allows the arm to spin 360 degree. The wavy locking knob makes it more convenient to tighten and adjust the position. Safety: With excellent locking system for stability and security. Helping photographer to set up lights or other accessories easily on the C-stand, which avoids problems with staff cooperation.