This Athearn Throttle Control SDK-789 T-001 is a great addition to any model railroads and trains collection. Made of durable plastic, it is built to last and operate on DC power. The control system is analog, providing a classic and reliable way to operate your trains. The throttle control is designed in a sleek gray color and is suitable for HO gauge models. This item is pre-owned but has been well-maintained, ready for its new home.