This Zipp Chack Japanese Secret Puzzle Box was designed as a Christmas present for 2018. Crafted by Yasuaki Kikuchi, this Karakuri box takes on an interesting theme with a with a zipper as the motif. The mechanism is fairly complex. A hint of "32" is given to solve the puzzle. It was released in November 2018 and has exterior dimensions of 125 x 82 x 54mm with an inside storage space of 99 x 52 x 24 mm. Woods used are Chanchin, Mizuki (Dogwood) and Magnolia. Will arrive in gift box and opening diagram.