A standard height 1 x 2 gridfinity module that holds two Brother p-Touch TZ cartridges on their end.
Just enough tolerance that the cartridge will still fit with the wrapper on it.
I recommend placing the cartridges into this with the exposed label down so that they are protected.
Edit 27 Jan 2023: Made the magnet holes supportless. Print at .2mm layer height for maximum effect.
The author marked this model as their own original creation.