These Formula High Impact Nylon Race Mirrors are suitable for most Formula cars. They are very light, strong, and aerodynamic, ensuring minimal drag. Available in flat or convex glass options and in either left or right handed fitments.Lightweight and aerodynamicTough and durable high impact nylon shellUniversal 2 bolt fitmentIdeal for formula race carsGlass Dimensions: 113 x 52mm (58.76 sq. cm).Mounting dimensions - 6mm diameter hole. 38mm hole spacingPlease note: These mirrors are no longer branded 'SPA' but they are manufactured in the same factory using the exact same tooling and materials. The only thing which has changed is the brand name.