This design is by KrazyKajunTX and was found on MakerWorld Under the "Creative Commons (4.0 International License) Attribution-ShareAlike" License. The design was not modified. Over the years, I acquired many saw blades. One of the most common size being the 6-1/2" circular saw blade. At some point, it became a problem trying to store them. That's when I found this model. After 3d printing this model, it was no longer a hassle or headache having to swap blades for ripping or crosscutting. This holder is for a 6-1/2" circular saw blades. MakerWorld Link:https://makerworld.com/en/models/1860892-gridfinity-4x4-saw-blade-6-5-circular-storage?from=search#profileId-1990298 License: https://creativecommons.org/licenses/by-sa/4.0/ *This product is printed out of Black PETG.