jsc2021e029745 (7/13/2021) --- A preflight view of the TECHNOLOGY BOX platform design. The main objective of Technology Box (Tetr’ISS) is to conduct experiments gathered in support equipment called ‘Platform’, to illustrate science principles based on physics and chemistry. For this mission Tetr’ISS contains the Chladni’s Figures experiment: a physical science experiment to observe the sound waves in 3D thanks to fine particles organized according to nodes and antinodes.