Make better electrical repairs and accessory installations with Dorman Builders Series components. This butt connector assortment features pre-installed color-coded heat shrink tubing for a weatherproof installation and professional appearance. Every Dorman part is backed by over 100 years of experience, along with a dedicated team of product experts, automotive engineers and technical support specialists based in the United States. We are passionate about giving repair professionals and vehicle owners greater freedom to fix cars and trucks, which is why we have more than 100,000 parts in our catalog today and promise to never stop driving new solutions. Product Features:Professional appearance - the weatherproof butt connectors in this assortment are designed for a clean, professional look when installedSimple installation - the butt connectors in this assortment feature pre-installed heat-shrink insulation to simplify installationDurable materials - this butt connector assortment is made from quality materials to seal out debris and properly insulate electrical jointsVersatile component - this assortment features color-coded connectors to fit various wire gauges