These silicone springs are for the visor mechanisms on a G3 (or G2) helmet.
The 6 silicone springs are 3 full sets for one Cookie G3 and G2 helmet. The springs wear out over time and have to be replaced if you find the visor closing mechanism not holding properly, or if a spring gets damaged or broken.
You can also add a new set of screws for the visor locking plates from ChutingStar.
To replace the springs on a G3, remove the visor locking plates and visor and the outer portion of the visor mechanism. Replace and put everything back together.
On a G2, start as above, but there is also a machined aluminium hub fixed into the helmet with two Philips head screws located inside the helmet. The best way to access these Philips screws is through the audible pocket. Locate the head of the screw and using a xacto knife put a small cut in the black velour over the head of the screw to get your screw driver in there. Once this part is out of the helmet, the round disk can be removed and the spring accessed. The G2 spring does not have a bump on it like the G3, so using an xacto knife you can cut this bump off and install.