RAM Double 1" Ball Adapter Standard BacPac Backdoor delivers waterproof

Standard BacPac Backdoor delivers waterproof protection to 131’/40m for your GoPro and BacPac accessory

Just like the UV Posters of Yore

including high-performance activities such as skiing or motorbiking

The reef is still bathed in UV light you just can't see it

The filter is an optically flat acrylic filter

RAM Double 1" Ball Adapter Standard BacPac Backdoor delivers waterproofThe RAM B 230U, double ball joiner, consists of a 1" rubber ball on both ends that allow the connection of two 1" socket arms. When measured from ball center to ball center the arm length is 1. 75". This mount is ideal if your mount arm is just too short.