This one needs no introduction. Everyone's favorite n-ary puzzle box by Karakuri.
This is the smaller remake of original RF-4, measuring 7.7 CM cube and made in gorgeous Zebrawood.
I've
personally heard some people's copy being loose (in the later releases
of this version), but my copy functions perfectly. It has been kept in
humidity controlled dry cabinet. The first move (which is loose in many
copies) is very tactile and has perfect smoothness.
Comes with original box and solution sheet.
Can combine with other puzzles. Shipping this would generally cost around 25$ via national post or I can also ship via FedEx. Payment via PayPal or Wise.