Car Headrest-Post Bag Hanger

My wife wanted some way to hang her purse and grocery bags in the car, so they wouldn't take up space on the back seat. 

Note: it is necessary to take the headrest out of the seat back to install the hook.

Printed in PETg to help withstand summer car heat.

I've included a S.T.E.P. file, mainly so you can resize the hole to fit your own headrest post.