This was where it all began (for me, anyway): a transparent box that held a "clearly" visible treasure. As Fred mentioned, however, the box lacked durability if opened too many times (the tabs would eventually just "break").
Brings back so many memories. I remember opening this transperant box and was so excited that I got my first pair of Oakleys.
these boxes were transparant plastic, and were( and are ) very easy to "destroy "if you opened them once too often