The Lincoln 68 Inch Diablo Top Stack features a 5-inch outside diameter with a plain end, designed for the left side. This chrome-plated top stack is of OEM quality and fits most makes and models. With its sleek design and durable construction, this top stack is a practical and stylish addition to any vehicle. Sold individually, this top stack is a reliable and high-quality option for those in need of a replacement or upgrade.