The 555 timer cufflinks are the perfect gift for men in electrical engineering and similar professions, hobbyist, hardware hackers, and makers alike.
The 555 timer is probably the most versatile and popular chips ever invented. It can be used for many things such as making a light flash on and off, making a particular frequency in a musical instrument or driving the servos in a remote control car. For many people getting into electronics it was the first integrated circuit they started using.
These 555 timer cufflinks have the chip as part of the design at a 1:1 scale. The back side of the cufflinks have the pattern of the DIP-8 package of the bottom side of the circuit board and have been thickened and rounded out as to not catch on clothing.