If you have purchased our CLOCKS from Amazon, here is how you can get a FREE premium quality PCB ruler.
* Products other than clocks are not eligible for the free PCB. Thank you.
1) Log into Amazon, find the nixie clock order, and click “Leave seller feedback”.
2) Write your honest review. It can be just a few words.
3) Send us an email with your Amazon ID.
That’s it. We’ll send you a PCB ruler for FREE.