1. Material: abs plastic base + tin alloy support + strong adhesive 2. Abs plastic base surface treatment: oil injection, support color customization 3. Tin alloy support, electroplating treatment 4. Tin alloy support, adjustable at 90 degrees 5. Different from ordinary ring brackets, the phone can be placed flat on the desktop without shaking 6. After use, the golden film on the ring buckle is torn off by itself