The Foam Box is made of Expanded Polyethylene (EPE).  EPE presents a smooth surface and is known to have chemical resistance and high flexibility.  Its high impact absorption feature keeps it from deforming when subjected to impacts.

Simply because we need to insert a handle for a better carry experience.  Don’t worry, the glue used to fix the two parts together is extremely resistant and will ensure that they stick together for The Foam Box’s lifetime.

No.  The Foam Box is made of EPE, which is known for its flexibility.   That is why we do not recommend to put it under any tracks.