The money Maze puzzle is flimsy. I purchased two and the first one was fine to put the money in although fiddly. The second one had a very small piece of plastic broken inside it which meant when you placed the money in the box it would not close. I was given a replacement immediately at no charge by The Gift Experience so their customer service was very good BUT when I came to insert the money in the box the hard plastic is so brittle the lock mechanism broke so the box would not close. As it was getting close to Christmas I decided to abandon the idea and went elsewhere for a different money maze box which was cheaper and sturdier😐