Hi Duann! The thickness of the structure is slightly above 1 mm. The fact that it can be treated that bad has two reasons: the material itself is quite flexible, and the structure provides plenty of possibilities to deform. On the picture above (the photo with the squeezed ball) you can see that the individual beams are not deformed much, although the sphere is squeezed to the maximum. Like this, it can absorb pretty high amounts of energy. I threw it several timesagainst a wall, and really hard. Until now, not a single beam broke... cheers Frank.