Car hammock handbag holder works with cars that have center consoles that open from the front (cannot slide open) and have accessible headrests, not with middle, side-opening consoles, and sports armrest consoles. It is also not compatible with cars that have no consoles at all.
* If the console lid opens from the side or middle, you can use Command Hooks (the kind used to hang heavy picture frames) attached upside down inside the console and tie the strings around them. It has worked great for customers in past. Use your own discretion in such case.