The HO Athearn RTR 7164 MKT Katy 54' PS Covered Hopper 4428 is a pre-built model of a Hopper car with a green color. This 1:87 scale toy is made of plastic and metal, featuring a painted design that accurately represents the Katy Railroad. The C-9 grade indicates that it is brand new and in excellent condition, making it a highly detailed and realistic addition to any model railroad collection.