The video showcases the installation of Kustom Interior custom seat covers and floor mats by Custom Cover on a Ford Mustang, specifically the S550 model. The covers are designed to fit snugly over existing seats, giving the interior a premium look. The product includes front and rear seat covers, matching floor mats, and headrest covers. The covers are easy to install and provide a tailored fit, making them suitable for various car models beyond the Mustang. The video emphasizes the quality of craftsmanship, detailing features like precise stitching and color-matching. The narrator expresses enthusiasm about the transformation, suggesting that the interior now looks significantly upgraded.