From the original creator TinyToolShop//3DEDC:

The MOD GRID is a fully modular system that allows you to organize, consolidate, and quickly access your favorite gear. The 3d printed system is built for total customization. Each tool bracket can be moved, swapped, or rearranged across the MOD GRID to perfectly fit your evolving carry. For attachments, see the original creator's model

Initially based off of the N-O-D-E DIY Wallet but changed to work with MODGRID.

You will need 1.25in // 32mm elastic band to be used as a wallet / card holder. Info provided in NODE wallet link.