Model 357 Puzzle

Model 357 is the third of in a series of machined mechanical puzzles from Pyrigan & Co. Made of T6061 aluminium and featuring a matte anodised black finish. It has some fairly small internal pieces that can fall out and roll away once it is unlocked so you probably want to do the final disassembly over a tray. 

Model 357 is a limited edition of 200 pieces. Each piece is assembled by hand, tested multiple times and engraved with a serial number. The objective is to take apart and reassemble the pieces. Warning: the internal pieces are small and could be a choking hazard for young children.