The product is a set of 9 spark plug wires with a diameter of 10.5mm, designed for electronic ignition systems in engines such as SBC, BBC, and HEI 350. Made in the United States, these cables are essential for ensuring proper spark transmission and ignition efficiency. With dimensions of 12.36 x 9.02 x 2.76 inches and weighing 2.09 pounds, this set is a reliable and high-quality choice for automotive enthusiasts looking to optimize their engine's performance.