Kato USA Model Train Products Gunderson MAXI-IV BNSF "Swoosh" #254000 Double Stack Car Set with Swift 53' Ribbed Containers, 3-Unit Set Steel-plastic compound wells give heft and make operation possible even when running empty Included 6 x magnetic Swift Ribbed-style 53' containers which can be removed and swapped with other intermodal cars Articulated wells have easy-to-connect/disconnect clips which make transition from storage to operation and back a snap Most current paint scheme version of BNSF's MAXI-IV well cars