The GoPro Slim mounts are slimmed down to a basic GoPro adapter and base. Adjust your GoPro by rotating the aluminum adapter 360 degrees on a 1/4-20 threaded stud. Lock in place with the jamb nut using a 7/16" wrench. The strut base fits any size aircraft spreader bar, bi-plane strut, or wing strut from a J-3 to a Caravan. The simple clean design straps firmly to your wing strut without using bulky blocks or bolts. The FAA friendly base can be attached quickly and easily with the Cushioned Steel Strap Kit which is the ultimate safe and secure universal strap. The stainless metal strap is cusioned with a rubber anti-chafe cover protecting your painted surface. The strap and cushion assembly is cut to fit any size strut from a J-3 to a Caravan. The strap is tightened by hand with a thumb screw for a temporary attachment that is very rigid to hold your camera as stable as possible. It is recommended to use the GoPro safe metal case to eliminate the common problem of plastic cases and mounts breaking.