A tribute to Felix Baumgarnter, the man with balls of steel, who went through the sound barrier in nothing but a space suit.
The surrounding spiral loops in on itself, doing a full 720 degrees turn, an infinite loop.
Width: 2.8 cm, Height: 3 cm. The inside is hollowed out to reduce weight, and features an 'F'.
2.606 w x
1.026 d x
1.026 w x
0.404 d x