This is the first stackable box I created. This box we 3D printed on our Bambu P1S printer with ABS plastic. It's excellent solutions for storing everything you need in the home, garage and office. 
The box has a special design and reinforced pattern on sides and lid that opens almost completely.
Each box can be close by 2 latches. Each 2 boxes can be "stacked" with 4 connectors. 
Internal box space is 8 in x 8 in x 4 in (almost).
I Installed screws myself and check the item for quality.

We can add you name or logo and print in different color. 
I have Gray/Gray as on photo ready to be shipped, all others will be printed shortly.
Please message me with all questions.