Riser for Narrow Viaduct Pillar

This is a remix for my previous model in case you have a use case to need just one of the narrow W6 or W7 pillar pieces from Michal Fanta's Train Track Pieces. The original model is good for when two are paired together, but can't always predict how my son will like to build our train tracks.

Identical, except adjusted to accept a half width base.