These Stainless Steel Wiper Arm Covers are designed to fit Peterbilt 379, 388, and 389 models. Made from durable stainless steel, these covers provide protection and enhance the appearance of your windshield wiper arms. Sold in pairs, they are easy to install and fit most Peterbilt 379, 388, and 389 makes and models. Upgrade your truck with these practical and stylish wiper arm covers that offer both functionality and a sleek look.