Right now the best price with coupon code for ENJOYWOOD 3D Multi-Angle Measuring Ruler Square is $9.99 (in Banggood). Just check coupons out (with price alert and history). Let’s see what best price is ATM.
ENJOYWOOD 3D Multi-Angle Measuring Ruler Square Protractor Hole Positioning Inch/MM Imperial Metric Durable Aluminum Alloy T-Type Triangle Scriber Tool Ideal for Woodworking Measuring Angles 22.5/30/45/60/67.5/90 Degrees – Metric
Latest price update (UTC time):
Banggood ($9.99)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. Isn’t it too expensive? According to my database, the average price is $10.11 and current price is $9.99, so it’s probably a good price!
Link: Banggood product page
Price: $9.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
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
Check out price history chart (for all/most countries) for ENJOYWOOD 3D Multi-Angle Measuring Ruler Square.
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)).