This MacTools RTJ101 Relay Test Jumper Kit is a must-have for any automotive enthusiast. It is designed to make testing relays a breeze, ensuring accurate results every time. The kit is made by Mac Tools, a trusted name in the industry, and is backed by a great manufacturer. With this kit, you can easily test relays without having to worry about complex setups or unreliable results. The jumper kit is perfect for anyone in need of a reliable and efficient way to test their vehicle's relays. Whether you're a professional mechanic or a DIY enthusiast, this MacTools RTJ101 Relay Test Jumper Kit is the perfect tool for you. New not used and everything is there in the kit.