These Givi TN5128 Lower Engine Guards are made from 25 mm diameter, 2 mm thick, steel tubing designed to reduce any serious damage to the cylinder heads, exhaust headers and engine casings that would usually be sustained in an accident, making them ideal for touring, adventure riding and everyday use. The Satin Black Hard Coated Left and Right sided Engine Guards, the spacers, the instructions and all the necessary fittings are included.