The Open Box can be used for free practice, but is mainly accessible to experienced members who have the necessary knowledge, to be able to carry out a training independently and without a coach.
The reason for this is quite simple: injury prevention!
Even if the Open Box is not always supervised by a coach, the well-known rules such as the unsolicited removal of equipment after training (barbell bars, weights etc.), the non-dropping of the barbell bar with 5 kg Plates, cleaning the racks and Barbells of skin debris, blood etc.!