The ATLAS N Scale 48027 GP-7 Pennsylvania RR Loco #8798 is a ready-to-go DC analog-controlled 1:87 scale diesel locomotive made of plastic. Featuring a multi-color design and representing the Pennsylvania Railroad, this model is perfect for transportation enthusiasts aged 17 years and up. The locomotive runs on a two-rail system and is a great addition to any model railroad collection, offering a realistic representation of a classic locomotive from the past.