When I first got it, I couldn't tell if it was broken, or just horrible quality. It isn't broken, the puzzle is just very bad. The pins and dials are extremely stiff, sometimes near-impossible to move. There are scratches and cracks on the front. The mechanism works, albeit inconsistently. After some usage, it gets easier. Only buy this clock if you want to see how far clock hardware has evolved.

Nice puzzle!!!

Really nice puzzle, I have a lot of fun playing with it

I liked it, I think other brands may be better, but I liked the spin, it did not hurt my times. It may be good to lubricate to get better.

very very bad clock. comes with a lot of scratches, pins are bad, mine broke like a week after getting it. clocks not syncronised so you cannot solve it. wait for the qiyi one. also wayyyyy overpriced.