Gridfinity TO220 packaged Component holder

This 1x1 block can holds TO220 packaged electronics. I pulled my measurements off of a TIP-120 Transistor, but seems to work fine on others. While the block can store up to 21, to easily pull out each i store a max of 12 per cube, skipping a row . If its all the same type of component I don't see an issue staggering the components, and just pulling the taller ones out first.