The "econo" ET-107B-75 3/4" (20mm) x 75' is a moulding, designed specifically for automotive use. This high-quality moulding is engineered to not shrink, discolor, or crimp around corners, ensuring a lasting, professional finish. The economical ET-105B-75 lays flush against the vehicle, providing a sleek and seamless look. The moulding features a layer of butyl embedded into the channel, which adheres to the vehicle while the urethane cures, adding an extra level of security and durability.