Born to be wild? But with a ring like this, how could it be otherwise? 

1. The adjustable ring comes on a silver stainless steel base with a 3 cm circumference.
2. The sphere covering the ring is made of smooth glass and reveals at its center: a miniature biker, decked out in his red helmet and black overalls, riding his vintage-style red and chrome motorcycle. He seems to be driving at top speed, as indicated by his position at the front of his wind-braking machine! Where could he be heading for, on this smoky anthracite asphalt covered with fresh paint?  The rest of the story is up to you.