The Proto 2000 No. 30038 HO Scale D&RGW SD9 Diesel Locomotive #5312 is a model train engine designed for collectors and hobbyists. With a gauge of HO, this locomotive is detailed and accurate in its design. The Proto 2000 brand ensures quality and authenticity, making it a desirable piece for model railroad enthusiasts. Perfect for those aged 17 years and up, this diesel locomotive adds a realistic touch to any train layout.