Interpreted this box is for 8 SD card but it go longer take (12) the other 4 are no longer fixed but by the hard rubber and are thus loosely inside the box.
Whether this is desired, everyone should decide for themselves.
In my other box (SD-MMC ect insert) is the closure easier to but the latch is securely and firmly so that does not happen inadvertent opening.
By the handle / eye on one side of the box is linkable with a conveyor belt ect.
The disadvantage is clearly the size of the box
The sturdy body and the deposits the box is wider and higher than simple boxes. Dimensions approx 12x6x2
But that's fine with me.
The other box I have left is equipped with a different insert and also has a different color of the rubber seal.
What is very handy to the various boxes hold apart.