They're very strong and nest nicely into Stock LS springs. They'll also fit inside TS plunger tubes and NF's.


Don't be fooled by the inferior party poppers that come in packs of 3 and are redish in colour. Look for the baby blue ones. They're quit a bit larger.

Nf spring, TS spring, Party Popper spring.

Approximately 5.25" long. (No, I did not stretch it.)
I don't know the 'specs' but it is quite a bit stronger than all stock springs that I have come across.