Can the box be removed from the car?

Yes, it can be dismantled and stored in less space than conventional boxes, given its reduced volume once folded. Anyway, the main advantage of this box is that, due to its lower impact on the aerodynamics and aesthetics of the vehicle, when folded, it is not necessary to remove it, even though it's not used shortly. You can always carry it, ready to use when needed.

Any special means of attachment to the roof vehicle are needed?

No, the fixings are similar to those used for roof racks.

How long would it take to fold or unfold the box?

Approximately, a minute and a half.

Are any kind of tools needed to fold or unfold the box?

No tools are used, only the lock key is needed.

Could the load damage the vehicle roof?

No. The load doesn't rest directly on the vehicle roof, but on the surface of the lower part of the box, a reinforced bottom that prevents deformations of the vehicle roof.