Nicholas Vuigner, a 25-year-old Swiss skier wanted to make a unique video with his smartphone and has spent the better part of two years figuring out how to do it, Gazeta.ru news site of Russia reported citing The News Web.

He came up with a custom 3D-printed rig, called Centriphone, which basically amounts to him swinging the smartphone around on a bunch of string as he skis downhill.

The video was recorded at 240FPS on an iPhone 6.

Vuigner even says he did not break a single device while doing all his testing.

He has not provided any images of the mount yet, but Vuigner hopes to make it available as a 3D printing template for anyone to try in the future.

Nicholas Vuigner’s Instagram account includes numerous other extreme recordings.