Physically The YOT and YOT II look almost identical. Both are round shaped "discs", made of aircraft grade aluminium. Construction and finish of the puzzle are excellent and there is no doubt this is a high quality puzzle with good looks to match. Each have at the top a little roundish "knob". They both share the same diameter of 70mm (2 3/4 inches). The only difference between the two puzzles is that the YOT II is slightly "thicker" than the original YOT around the body of the puzzle, the former 16mm while the latter is 13mm. Overall height (including the knob) for the YOT is 25mm while the YOT II is 28mm.
|The YOT and its thicker counsin YOT II|