Porykon O-Ring Pack
PoryKon - Replacement counterweight o-rings.
Porykon makes a wide variety of counterweights for all your 5A needs, and now they're starting to incorporate silicone o-rings into some of their designs.
These o-rings are first introduced with the Saturn Counterweight, but will be compatible with future releases as well. Change up the look of your counterweight with this colorful variety pack!