This new coupler is specifically designed for accurate scale size, more prototypical features, proper scale-distance between cars and no slinky effect when operating. This easy-to-assemble and install body mount coupler consists of a draft gear box, lid, knuckle, lip shank and a separate plug-in air hose. There are no springs. They are uncoupled manually using a sharp toothpick or a needle and can be joined by simply pushing the cars together. These couplers are to scale so they will not couple with existing larger N scale couplers. For those who have Magne-Matic or other coupler systems, you can use a conversion car, which comes with a Magne-Matic installed on one end and a True-Scale coupler on the other.