I printed a bunch of Brian Dean's Embedded Magnet Dispensers (https://makerworld.com/en/models/60890#profileId-63102) to help sort the magnets I use for 3D printing projects, but couldn't find a storage solution to span the range of magnets that I have. So, I decided to make my own and design it for the Gridfinity system. This will allow me to add new boxes in the future, as needed, versus being stuck with a limited design. Each Gridfinity box holds 2 of the 3mm-6mm magnet dispensers, and 1 of the 8mm-15mm magnets dispensers. Due to the strong magnetic forces the dispensers are spread out in order to reduce knocking other boxes over or attaching themselves to eacher other as they are pulled out for use. Note: Not all sizes were created, I only made the ones I have in stock. If you are in need of different size that Brian has already designed, let me know and I will make one for that size as well. Also, the 15mm magnets in particular are extremely powerful and even in their own box may cause some ruckus when removing and putting back the dispenser into it's slot. This can be reduced by placing blank or non-magnetic Gridfinity boxes in between the 15mm magentic dispensers and other dispensers to help buffer that distance. Enjoy.