$20.99 – Electric Foam Cutter 3 in 1 Foam Cutter Electric Cutting Machine Pen Tools Kit 18W Styrofoam Cutting Pen with Electronic Voltage Transformer Adaptor – EU Plug.
Use coupon and get Electric Foam Cutter 3 in 1 18W Kit for $20.99 (from Banggood). Just check coupons out (with price alert and history). You probably want to know what is the best price?
Latest price update (UTC time):
Banggood ($20.99)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. The question is – is it a good price? Looks like this is great price. I didn’t track lower than that in CouponsFromChina database ever.
Link: Banggood product page
Price: $20.99
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
Check out price history chart (for all/most countries) for Electric Foam Cutter 3 in 1 18W Kit. The lowest price was: $20.99.
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)).