In this work I needed an amfilade arrangement of exhibition halls. In four rooms, four bullet-like objects were created, with a diameter that prevented these forms from entering the Hall. Only "eye contact" was possible through the door openings. The transparency of the forms also allowed for visual penetration of their interiors. Each of them contains the idea of the simplest gate, an open passage made of technical carbon paper. The facilities were constructed using aluminum tubes and stretch film, used, among others, to secure loads during transport. The matter used is of course again crucial here.