Brawa Modellspielwaren
Platform Side Set

Walthers Part # 186-2697, p. 208 Walthers 2012 N&Z Scale Reference
N scale, $8.99, currently in stock at Walthers

 
Includes four straight sides, each 5-1/2" (13cm) long, four ramp sections, each 2-3/8" (6cm) and two transition sections, each 1-1/4" (3cm) long.