AMP - Profiled underbody for a hard sub-surface such as concrete or asphalt.

NMP - Flat, patterned underbody for a soft sub-surface such as compacted road base, sand or gravel. Sides have dowels [holes] molded for synthetic pin-connectors to interlock them.

EU - Flat, underbody for a soft sub-surface such as compacted road base, sand or gravel. Sides can have optional dowels [holes] molded for synthetic pin-connectors to interlock them.


HALOGEN FREE

FORMALDEHYDE FREE

PVC FREE