I actually have a pair, and they are pretty much useless unless you're on flat pavement or the deck of your yacht.

The Dead Road has flat and smooth pavement.

It doesn't seem to have much shape, either, though that might be more a function of its lying on the hard, flat pavement of the Timoch International Airport.

Venport smiled to himself as he rode the lift cables to the undulating section of flat pavement on the polymerized treetops.

Pre-existing lines of weakness in the rock (vertical joints) contribute to the formation of extensive fissures separated by clints (flat pavement like slabs).

The flat wide pavements felt wonderful to him.

For example, walking uphill requires different muscles than walking on flat pavement.

Breathing deeply in relief, he dropped quickly down upon a flat pavement, neutralized his controls, and turned to Nadia.

A skidpad or skidpan is a circular area of flat pavement used for various tests of a car's handling.

The aimless groping of a shoe on flat pavement: no stone.