Impact Driver Bit holder - Double bit holder

This model fits on DeWalt impac drive or drils.
You can buy a single bit holder from DeWalt but they sell it 20$ and it's a single bit holder. Why not make our own. ;-)

VERSION 2:
After using it quite a lot. the plastic worn down and the bits would slip out. I upgraded the design by adding 2 tabs to fit with the bit lock groove. When installing it, I put a peace of dense foam under the tabs to help with the spring. (See picture)