Material: aluminum alloy Surface treatment: anodizing The color red These versatile aluminum alloy clamp blocks can be applied to help tighten joint joiners joints. Product Description Product features: These versatile aluminum alloy clamp blocks can be applied to help tighten joint joiners joints. Product Parameters: 1. Material: aluminum alloy 2. Surface treatment: anodizing 3. Color: red Packing list: 1 * tray 1 * M8 threaded rod 1 * M8 nut 1 * T-shaped nut M8