Car Seat Hook - Strong and easy to print

I wanted a car hook that could put up with some harsh conditions, heavy loads, and not have to worry about it breaking.  Inspired by "lilmikey"s Colorado Seat-back Hanger, I redesigned the model to be fully captured by the head-rest stem, reduced some of the material, and made printing a little easier. 

Print on the side so layers are oriented lengthwise.  No support needed if your printer does okay with bridges.  Print in PETG or ABS with at least 4 outer layers for heavy duty use.  PLA might deform in hot cars during summer months.

Works in most cars with removable headrests.  Base is designed to fit Toyota, but also fits Honda and most other vehicles should be compatible.   Mirror part in your slicer to have symmetric pairs or download the mirrored model.

Inspired by "lilmikey"s Colorado Seat-back Hanger.  I wanted the hook to be completely captured by head-rest stem, in addition to the hook-end being thinner for various bags.  A few iterations later I changed the geometry and ended up with this design which is easy to print and uses less material.