Material: aluminium alloy Surface treatment: Anodizing The color red These versatile aluminium alloy clamping blocks can be used to tighten joints. Product description Product features: These versatile aluminium alloy clamping blocks can be used to tighten joints. Br> Product parameters: 1. Material: Aluminum alloy 2. Surface treatment: Anodizing 3. Color: red Packlist: 1° Tray 1° M8 threaded rod M8 Nut 1.T-shaped nut M8