Code inside did not work even though the cardboard was covering the code.
585160
This code did not work and I had to purchase another one from a different website. Buy at your own risk.
1494093
Bought this, thinking it was 'cardboard', but there's no QR code to scan for the Cardboard app. Also, because I wear glasses, and they won't fit in the headset, everything is blurry.  Can't use this -- returning.

Additionally, even though it 'says' card board, it doesn't have any buttons or magnets with which to select.  I thought that was part of the cardboard specification.

So, how can they continue to put 'cardboard' in the descriptions for this product?
4473664
Didn't work no matter what I tried, even modifications to the card itself.
3887992
the game did not work code already used i want a new one or my money back thank you eric
316181
This was so cheaply made. The bottom opened up by just sticking your fingernail in it. The code seemed to work sometimes but not other times. We bought this for our son to keep track of his money and to also keep his sister out. It was so complicated to figure out that there is no way he would have been able to do us it didn't seem to "add" as you were adding money to it. I would give it a zero if I could.
142218
The code did not work I had to have a 25 character code and I only got 17.
2379688
I set the combination and put my key into it and then tried to open it with the code I set and it will not open.  Super frustrating.  A waste of money and now I need to make another key copy.
2650232
Code does not work. Can't use. Want my money back! This is just a blank useless piece of paper. I got ripped off.
1369373
Call of Duty 4, I ordered this game, Idiots sent it without a code, couldn't open it. I would rather get my money back and order it from another outlet that I can trust.
2155991
The box will only take a four digit code, not five digits as the book states.  I love the box and it works great for what I ordered it for.
1779945
This is a horrible product.  I got my code entered, put my valuables in the vault and could not get it to open again,  I finally cut it open.  Do not waste your money on this product
4342521
The code is full of bugs - not good for a book which is helping people learn the technology. I returned my copy of the book.
2552424
I just got this today and I got 'code has already been used.'
2261263
The inner plastic package had been opened; normally I wouldnt care. In this case, either someone re-keyed the lock and returned it, or the wrong key was put into the box. I figured all this out AFTER I installed everything! I want my money back!
1451808
I have problem with activating my code because it had been used before, so I had to contact them and square it away but It got handled and they gave me a new code.
176658
My game was delivered in very poor condition, the game suffered water damage on the inside, and pieces were missing. The inside looked like someone threw tomato sauce on the inside, and the hit point chips were either missing or damaged to what looks like water damage.
3145966
Did NOT ship with a new mathlab code as advertised.