58mm Filter Adapter for GoPro Hero3/3+/4 Housing:Standard The system is designed to

The system is designed to be flexible (in use) but stable enough so you can mount a camera behind your back (or from the side or front) to create the impossible 3rd person perspective

slide the RAM adapter over the factory windscreen button

without ever letting your hands off the bars

The RAM-B-346U base fits cleanly over your existing brake / clutch reservoir cover with the 1" ball offset

for long durability and cost reduction

58mm Filter Adapter for GoPro Hero3/3+/4 Housing:Standard The system is designed toThis brand new product is one of the coolest innovations for the GoPro Hero3 and Hero4 cameras. It mounts directly over the camera's housing, and provides internal threads for installation of a 58mm filter in front of the camera, effortlessly! Within seconds, you can install swap any color filter like red, magenta, polarizer, neutral density, etc. No screws to remove, simply snap the adapter in place by pressure. It fits the contour of the housing