The ultimate gift for anyone with a technical, computer, electronic or amateur radio background. These eye-catching ACT 1750P 100MHz crystal oscillator cufflinks, mounted onto nickel plated swivel cufflinks, are designed and handcrafted by our steampunk artist. Crystal oscillators, similar to these, are found in most electronic devices such as computers, radios and televisions, and they provide a highly-accurate reference for the device. These cufflinks measure at 12mm wide by 12mm high by 25mm deep and are so unusual that they will not fail to attract attention and create an instant talking point. Each pair of cufflinks is boxed and ready to give as a gift to someone special.