This is an HO-Scale (1:87) under-frame designed by the request of the NMRA to fit a Roundhouse box car shell. The under-frame measures 33mm wide by 174mm long and has mounting holes for trucks, couplers (fits Kadee), and details. The under-frame also has mounting tabs that mate with the Roundhouse shell. The chassis is available in either gray ABS plastic.
Package includes one (1) under-frame in the selected color.