Review on Mechanical Wooden Puzzles for Adults - ROKR Puzzles by Zachary Greene

I really enjoyed building this model. It was hard enough to keep my attention, but not so bad that I got frustrated and threw the stupid thing away. The pieces are big enough for me to handle easily. They also come off fairly easily. I was very upset when I broke the rudder trying to get it off the sheet. then I noticed they provided a second one! The second was removed with no problems. Very well thought out, good instructions and everything fits together perfectly. I think I was hooked, I've ordered 2 others since assembling this one and I liked them all.