東武 9000系を中心に掲載しています。
Tobu Series 9000 was built in 1981 for through services to the Tokyo Metro Yurakucho Line. It was Tobu's first stainless-steel train type, with chopper control. Each trainset consists of 10 cars, making it the longest formation operated by Tobu at the time. From 2007, trains were refurbished for through services to the Fukutoshin Line.