Our Ford Mustang mats combine the strength of a rubber backing with ½" thick 40 oz. premium quality yarn for a mat that looks great, feels comfortable underfoot and naturally resists stains. The polypropylene yarn will still look new even after years of abuse. The waterproof construction keeps water away from your original Mustang carpeting. The custom cut, factory grommet fastener and nibbed rubber backing keep the mats in place. Set of 4. 2 year warranty.