An O Gauge Tunnel can add depth and interest to your O Scale model railroad. We feature O Scale Tunnels from Lionel and MTH, two leading manufacturers of O Gauge model train products. Lionel offers Tunnel Portals, Straight and Curved Tunnels, and even a Polar Express Straight Tunnel. MTH offers Single and Double Portal Tunnels to our product mix. Imagine your little railroader as he/she watches a train coming out of a tunnel. Very cool! Please browse our Store.