The Vevor semi truck air lines kit is a 15' 3-in-1 replacement set designed for semi trucks, trailers, and tractors. It includes air hoses with glad hands and a 7-way ABS electric power line to support reliable air brake response and stable electrical transmission. The spiral-wrapped design helps reduce tangling and wear, while durable materials are built to handle demanding road conditions. This kit also includes seals, handles, hooks, a spring, and Teflon tape for a more complete installation.