This is a "Floating Tripod" GoPro mounting. Just like the name, it serves 2 function, being a tripod that can float. It comes with 2 main parts which are top and tank (has to be separated due to the printable size). The tank is hollow so it can float. The top serves as a GoPro mounting. Nut and bolt are included. You need 3 tanks to complete a tripod. The file name tank2 and tank2 copy are the same file. I just copied it so you won't miss any parts. However, the tank2- comes with a hole in the bottom which you can attach to a wrist strap. All tanks have a cut angle in the bottom so it will stand still when you convert it to a tripod. It also has a slot which you can add plastic suction clamp for mounting. The tank is also designed with slots so it gives a better holding glip.

Enjoy!