Review on Extend Your Reach with Prime Line Products SP 9667 Extension by Mark Adlesh

Sturdy despite its small size. I used them to turn my trunk that barely opened into a trunk that opens itself by using the springs as a pulley. When I pushed the trunk button, my trunk literally opened an inch. With these springs, when I push the button, the trunk opens fully, just like an automatic trunk. And for less than $4. This option on my machine costs an additional $800. So I think it was pretty economical and I was surprised at how thick and stiff these springs are! Definitely recommend