Thread: 510, Built-in 8ml e-juice bottle, Supports 2pcs 18650 batteries (not included), Resistance range: 0.09 – 3.5 ohm, Diameter: 22mm.
Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Price history and price alert
Check out price history chart (for all/most countries) for Dovpo Armour Squonk Kit Black. The lowest price was: $45.99.
Price records source(s): Gearbest
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)).