$13.99 – Stainless Steel 45 Degree Miter Angle Corner Ruler (Banggood, Aliexpress: Material: High precision carbon steel stainless steel, Thigh Length: 150x100mm/59×39”, Version: With Stop (the best price with coupon)).
I have just checked coupons. The lowest price I could get is $13.99 for Stainless Steel 45 Degree Miter Angle Corner Ruler (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Latest coupon and price update (UTC):
Banggood ($13.99)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Is it expensive? It looks like it’s a good price (lower than average ($14.12)).
Link: Banggood product page
Price: $13.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG58757f, BGDRB18, BGWT15, BGc8412f, BGa0b557, BGd1bfb8, BGWDT15
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Stainless Steel 45 Degree Miter Angle Corner Ruler [EU] ($-3)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for Stainless Steel 45 Degree Miter Angle Corner Ruler. The lowest price was: $9.99.
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)).