The product is a full set of spare parts for the TRI-ANG OO Gauge R259 4-6-2 Britannia con rods valve gear. This set is compatible with both TRI-ANG and Hornby models, and is designed for analogue control systems. The parts are specifically for the Era 4 British Railways Steam Era, with a scale of 1:76, and are suitable for collectors of model railways and trains. Made for DC power type, these rods are essential for maintaining and repairing your OO gauge locomotives.