PRIME-LINESP 9672 Extension Spring, Spring Steel Construction, Nickel-Plated Finish, 0.047 GA x 3/8 In. x 6-1/2 In., Single Loop Open (2 Pack)

Super heavy duty for how small they are. I used them to turn my trunk that barely opened into a trunk that opens itself using the springs as a pulley device. When I used to hit the trunk button my trunk would literally open an inch. With the use of these springs when I hit the button, the trunk fully opens like an automatic trunk. And did it for less than $4. That option on my car was an extra $800. So I think it was pretty cost effective and was surprised at how thick and tough these springs are! Would definitely recommend

I used these along with binder clips to make water bottle holders for my pets when traveling by air a long distance. They were the perfect length and very strong and flexible. I also use them to keep the door of the pet carrier and the cage open when I don't want it swinging closed on little tails or toes. A must- have for small pet owners.

This spring works exactly as you would expect, has great tension, and it is nice that it comes in a two-pack for a very reasonable price. I don't expect to need to buy a new one for quite a long time even with regular use.

Works as advertised. Unfortunately they were too weak for my purpose.

Measured the broken spring and was able to get one that was almost an exact replacement. Only in place for 4 months so can't comment on the longevity.

I got it to replace the spring on a kids toy. Unfortunately the spring is too stiff. Quality is ok and seems good for what its intended.

springs

Match the description. Fit perfectly.