KATO N Gauge Seibu Railway 40000 Series 50s Set L-train 6-car Add-on (Train Model, 10-2158)

The fourth-generation "L-train," which began operation in 2025, has been made into a product. The train features a "Legend Blue" base color with a white trim at the bottom, and a red "LONG" display, reproducing characteristics that differ from the standard train set. It's perfect for running in passing with the separately sold [10-1961/1962 Seibu Railway 40000 Series 50s] and [10-2019~2021 Seibu Railway 40000 Series], and is also recommended as a collector's item.