Hooks to the headrest post on many Chevy truck seat, maybe others.
Has built-in support, no auto-generated support needed.
Print in ASA so it won't melt in hot summer car temps, unless you live in a very cold climate or only use in winter.
Styles for thin or strap handles.
To remove built in support cut thin section with side cutters:
Then twist out bottom and top triangles.
There's a hole for a M3 that you can use to optionally “lock” in place on the headrest post.
The author marked this model as their own original creation.