This engine valve cover breather has a 3 inch overall diameter and is 2.50 inches tall. It includes a raised Chevrolet "Bowtie" logo emblem on the top side. This is a push-in style valve cover breather which fits a 1.22 inch valve cover hole. Made from high-quality steel material. Great looking chrome plated finish. This is an officially licensed gm performance product. Sold individually. Backed by a limited 30 day factory warranty.