Hex wrench holder

I needed something to hold the hex wrench for my bike rack in the trunk of my car so I don't lose it.
It's a 3/8" hex wrench for a [1-Up-USA bicycle rack.](https://www.1up-usa.com/)

It bolts in place using the existing sub-woofer mounting bolt in the trunk. Use a 13mm socket to get that off, pop this on, and bolt it back together. This fit my 2019 Ford Mustang. It will probably fit other vehicles.