Horizon - 2010 2011 Ep.3

[Polypore]

Hi, I recently watch the Horizon - 2010-2011 Ep.3 and saw that they were using a wooden dissassembly puzzle that could be some sort of ancient chinese puzzle thing. I thought it looked amazing but I cannot seem to find out what it is called.

PLEASE HELP!

On the iPlayer it appears at time: 29.21 / 29.59

Please watch that and help me, it looks amazing and fun too

Thanks