There is an on/off switch and a dial, it takes 2 minutes to learn how to use The Real Scrum.  Your coach can operate the machine while coaching the scrum.  It can also be used for strength and conditioning training.

Real Scrum can be used both indoors and outdoors.

It takes less than 5 minutes to set up.  It is transportable and versatile - compact, fits in the back of most cars.