The product is a set of 4 Athearn #5445 HO Scale Pennsylvania 34' Ribbed-Side Hopper cars, featuring a brown color and made of plastic. These hopper cars are replicas of the Ribbed Side Hopper, designed in 1:87 scale for HO gauge model railroads. With a Two-Rail System control, these cars are a great addition to any transportation-themed layout, representing the Pennsylvania Railroad in the United States. Perfect for young train enthusiasts aged 12-16 years, these analog-controlled hopper cars are a detailed and realistic addition to any model railroad collection.