A pair of cufflinks inspired by the Piston - Rod assembly in an internal combustion engine. In fact, these cufflinks are a 1:6 scaled replica of a real Piston - Rod assembly (with a few, unnoticeable modifications to comply with the 3D printing rules).

The great thing about these is that they won't look cheesy on the outside, as they will appear to be plain cylinders with some rings removed.

Discrete and low profile, yet classy. Ideal for fashionable mechanical engineers.