The product is a genuine Nismo wheel lug nut set, designed for use with Nissan vehicles such as R32, R33, R34, R35, GTR, and 370z. The lug nuts are black in color and made in Japan, with a size of 12mm x 1.25. This set includes 20 pieces and is identified by the manufacturer part number 40220-RN815. These lug nuts are a high-quality and authentic product specifically designed for Nissan vehicles.