The box is sturdy, made entirely of wood, and measures about 6 x 3.5 x 2 inches. It could be used as a low-tech "safe" for kids who want to store secret messages or other small items. For the price, I give this little wooden puzzle box the thumbs up.
The puzzle box is offered by BudgetGadgets.com. Their product page for the puzzle box has many photos, if you are interested in the multi-stage opening sequence. (If you do not want to know how to open it, you may want to have someone else order it for you.)
Here's the link to the clever and affordable wooden mechanical puzzle box. I am told you can use a the code DM5OFF4 to get 5% off discount for anything on their site.