FOSBOS is an completely free organizational system, every model is open sourced including both fusion 360 file and the step file. All the drawers are designed after the gridfinity standard.
This model is a bin for storing your carbon shine that fits in any of the drawers that is at least 6u high. This model does not actually contain the carbon shine itself, it can be found here. The model includes 3 different sizes, 1x2x6u, 1x2x8u, and 1x2x10u.
Please have a look at the assembly model(here) for more information