Color Black with silver coating, Material Titanium silver glue + Cloth, The Large One Open Size 145x79cm / 57.1×31.1″, Storage Size About 30x7cm / 11.8×2.8″, The Small One Open Size 125x65cm / 49.2×25.6″.
You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
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. ($19.91): BGSCM11
2. ($21.26): BG589b2e
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG4b9573, tRaDetRaCKeR, BGfb0978, BGAUTO22, BGdcbfa8, BG00c906, Cuponation9, 9OFFSUMMER, BGSCM75
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for Car Sun Shade Protector Parasol. The lowest price was: $16.99.
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)).