This bridge has square post piers that sit on a horizontal bottom support (concrete or stone on the prototype) and is the first bridge kit with laser-cut wood parts. This type of trestle was found on nearly every railroad in North America. Trestle may be built straight or curved and includes laser-cut piers and bulkheads, Bridge Flex Trak and pre-cut wood parts. Also include full-scale templates and curve templates to aid in assembly.