This is a Kadee?? HO Scale Non-Delayed Uncoupler MagnetFEATURES: Precision engineered. Permanent, between-the-rails non-delayed uncoupler magnet designed to be placed anywhere on a straight track segment. Length can be altered. Made in the USA.INCLUDES: 1 PairCOMMENTS: For use with Kadee?? Delayed-Action Couplers, but will not set couplers in delayed position.KadeePart KAD312