Home / Twin Star Cars Products / Twin Star Cars O Scale Products / Twin Star Cars O Scale Detail Parts / PS2 Conversion Bolsters with Coupler Pocket (Brass) PS2 Conversion Bolsters with Coupler Pocket (Brass)$26.00 These parts were designed to convert the Atlas PS2 4427 hoppers. They can be modified to use them on any PS2 hopper. Purchase Information Categories: Twin Star Cars O Scale Detail Parts, Twin Star Cars O Scale Products, Twin Star Cars Products Related products Twin Star Cars O Scale Detail PartsTwin Star Cars O Scale Products Universal Hand Brake Twin Star Cars O Scale Detail PartsTwin Star Cars O Scale Products Rock Island Heralds Twin Star Cars O Scale Detail PartsTwin Star Cars O Scale Products PS2 Conversion Bolsters with Coupler Pocket (Resin) These parts were designed to convert the Atlas PS2 4427 hoppers. They can be modified to use them on any PS2 hopper. Twin Star Cars O Scale ProductsTwin Star Cars Products Rock Island 53′-6″ Flat Car Kit (sold out) The model represents the 46’ Ryan Car Company series 93250 – 93749 which were rebuilt and stretched to 53’-6” between 1941 and 1942. The new cars were renumbered to 90500 – 90798