ReFuel 2-Pack Battery for GoPro Hero4 You can choose from 4

You can choose from 4 popular colors which include Black

It is secured firmly in place with the included Allen wrench

This aluminum knuckle kit is much stronger than the original plastic parts made by GoPro

The RAM X-Grip® has a clean and clever four leg design that sports great holding power without hiding your phone behind foam pads and plastic

Flip between any 2 filters on the same dive with the touch of a finger

ReFuel 2-Pack Battery for GoPro Hero4 You can choose from 4ReFuel's dual battery pack for the GoPro Hero4 Black and Silver Editions. Amazing run time on these replacement batteries for less money. You get two 90 minute rechargeable batteries that replaces the AHDBT 401 battery that comes standard. These batteries are 100% compatible with the GoPro Hero4 action cameras. Premium lithium ion cell battery.