$10.59 – Electromagnetic DIY Electronic Kit Long-range Projectile High-voltage Coil Booster Circuit Board Production Welding Electronic Science Experiment – Parts + shell.
I have just checked coupons. The lowest price I could get is $10.59 for Electromagnetic DIY Electronic Kit Coil Booster Circuit Board (in Banggood). Get coupons, create price alert or check price history out! What is the best price?
Latest price update (UTC time):
Banggood ($10.59)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. What about the price? Hmmm, price is higher than average (which is $10.08 right now), so better set price alert down below…
Link: Banggood product page
Price: $10.59
Additional Banggood coupons: first page and second page
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for Electromagnetic DIY Electronic Kit Coil Booster Circuit Board? There we go. The lowest price was: $9.74.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).