Symbol Earbuds Metal Sign

About the Earbuds design

Each bud is one long stroke bent into a tall narrow U, and at the outer end of one arm the line curls back on itself into a small closed loop. The two sit at opposite corners, one loop high on the left, the other low on the right, so the drawing turns on its center point and matches itself. Those loops are tight enough that the round hole inside them is no wider than the steel curving around it.