This is my double pendulum fidget spinner. I made this so it would be easily held and played with in one hand. This one is based off my other double pendulum spinner, but I made it 10 mm shorter in length so now its much easier to spin in the hand. Since its a double pendulum it makes chaotic motions however you move it. I used 1x 608 bearing and 2x 624 bearings. This spinner works best with full ceramic bearings or fully cleaned steel bearings. You can see it working here.