Three freely hanging black metal plates: 50x50x005cm, 75x75x005cm, and 100x100x005cm. Piezo sensor and contact speaker attached on rear side of plate, amplifying and mirroring it's subtle and naturally occurring vibrations, evoking it's characteristic resonant frequencies. Packaged in a black sleeve with a screen-printed sheet affixed to the cover. Edition of 100 (hand-numbered).