KAT2240-2__17909.1534951601.,Amazon.com: Kato USA Inc. HO 670mm 26-3/8 Radius Curve 22.5,Kato 22-102 - Analog Sound Box - Multi Scale - Midwest Model,Amazon.com: Kato USA Inc. N 315mm 12-3/8 Radius 45-Degree,Amazon.com: Kato USA Inc. N 315mm 12-3/8 Radius 45-Degree