The MT-J is a black steel joiner bar designed for straight line linking in magnetic channel lighting systems. This durable component is key for creating extended, seamless lighting configurations, ensuring a smooth and consistent appearance. Its steel construction adds to the overall sturdiness, making it suitable for a variety of settings where a continuous line of light is desired. The MT-J is an affordable and reliable choice for enhancing magnetic channel systems, providing quality and functionality in both residential and commercial lighting applications.