The outer body is thoroughly designed with Die-cast aluminum which gives defined, smooth and textured-surfaced metal parts for shock-proof tremendous outer body and gives you a remarkable look. Grand benefits that our headlight provides includes: >Good Strength-to-Weight Ratio >Great Resistance to Corrosion >Excellent Electrical Conductivity >Have a good stiffness and strength-to-weight ratio >Retains a durable strength for long-lasting life.