Clever trick that. The second piece to go back in has a bevel in the underside so when it's flipped it takes up less space when it's placed.
**** …..someone has been stitched up! And someone has lost £40million on gear…..that will need to be paid for….not condoning it…but that huge …. https://www.thehullstory.com/allarticles/lelley-cocaine-arrests