For sale is a brand new Athearn 93438 HO PA USPS tractor trailer with a 28' pup trailer/cab set. This ready-to-go/pre-built delivery truck trailer is perfect for any model railroad or train enthusiast aged 8+. The white color and 1:87 scale make it a great addition to any HO gauge collection. Made of plastic and metal materials, this set is sure to impress.