Premium Japanese Puzzle Box 5 Sun 21 Steps - FUJIYAMA II Wooden Brain Teaser for Adults | Traditional Gift, Home Decor & Stress Relief Activity | Perfect for Meditation, Office Desk & Collectors

I love that it is brand new and no one else has fiddled with it. What I didn't like is how Stiff move #4 and #10 are! It is so difficult to move sometimes you can hurt your thumb trying to push the piece. The other thing is panel on move #20 underneath the slide bar comes right off When sliding downward! I don't think it's supposed to do that. Other than that this box is super cool and I would definitely buy another! I just thought for $120 it would be built a little stronger and more manageable.