1m 8-26 AWG Silicone Wire 20AWG (Banggood, Aliexpress: Wire Diameter: 3.50mm(For 14 AWG)/3.00mm(For 16 AWG), Conductor Material: Tinned Copper, Wire Length: 1M, Temperature Range: -60oC to +200oC, Insulator Material: Silicone, Conductor Size: 14 AWG/16 AWG (the best price with coupon)).
Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
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.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($5.45): BG25d4e7
2. ($5.93): BGMatt2022
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): Parts8, BGRCParts8, BG8RCToy, BGToys1, BGRCT10, BGJUNEGSG9, Cuponation9, BGToys8
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 2 another warehouse/versions!
1. Europe – 1m Silicone Wire 24AWG [EU] ($-3)
2. China – 1m Silicone Wire 22AWG ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for 1m 8-26 AWG Silicone Wire 20AWG. The lowest price was: $4.77.
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)).