The puzzle pictured is made of 1/8" plywood . The entire box was finished with a coat of clear lacquer. Kits may be available in the future that use hardwoods like this picture for the visible outside faces.
Wheelie Bin
This is another “casket” type box, but it has no sliders nor moving
panels, just two wheels on the lid. You might think it looks a bit like
The Door, but this is much easier to make, and only requires two
numbers to open.
However, both wheels have 24 numbers, and only one number on each wheel
will open the lid. If you’re lucky, you could get this in only two
moves, but if you’re not, there’s 576 combinations to try out... But
the lid hasn’t got a handle. If it hasn’t got a handle, how does the
lid open?
This is fairly easy to make, as all the mechanical stuff is in the
lid.
Size is 5-1/4" square by 2-1/2" high and is made from 1/8" plywood.
This BH puzzle kit has alignment pegs built into the parts to make assembly easier and virtually every part in the kit is labeled.