Description: Handling a large block of dense styrofoam.

Description: Handling a large block of dense styrofoam.

Description: Handling a large block of dense styrofoam.

Description: Handling a large block of dense styrofoam.

Description: Handling a large block of dense styrofoam.

Description: Manually dragging a large size cardboard box on a hard concrete floor.

Description: Handling a large block of dense styrofoam.

Description: Dropping a large cardboard box onto a hard concrete floor.

Description: Handling a large block of dense styrofoam.

Description: Dropping a large cardboard box onto a hard concrete floor.