GrellFAB

Camera mounts for GoPro HERO6, HERO5, HERO5 Session, HERO4, HERO4 Session, HERO3+, HERO3 and Garmin VIRB Ultra 30 on helmets Cookie G3, Square One KISS, Bonehead AERO and Troy Lee Designs.

Rubber bands for GrellFAB mount

20 USD
Rubber bands for GrellFAB mount
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Rubber bands for GrellFAB mount

20 USD
Five spare rubber bands for use with GrellFAB mounts.
Change rubber bands when they are worn or every 6 months. 

Note: These are standard rubber bands for micro lines so you can also get them at your local skydiving store.