4 ms·
How do they cope with stairs? I am imagining something like this: http://www.youtube.com/watch?v=nAPwh0SMzIo http://www.youtube.com/watch?v=nAPwh0SMzIo
by coob 14y ago
How do they cope with stairs? I am imagining something like this:
http://www.youtube.com/watch?v=nAPwh0SMzIo http://www.youtube.com/watch?v=nAPwh0SMzIo