Latest update shows that 3pcs Aluminum Woodworking Rulers with Slide Stop costs $11.99 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Best price?
3pcs Aluminum Woodworking Rulers with Slide Stop Precision Pocket Ruler Metal T Track Ruler Square Ruler Inch and Metric Marking Measuring Scribing Ruler
Latest price update (UTC time):
Banggood ($11.99)
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it? But wait a sec… Is it a good price? This price is great, coz it’s the lowest in CouponsFromChina database!
Link: Banggood product page
Price: $11.99
This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGWDT15
(probably won’t work, but you can try them out)
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
Price history (for all/most countries) for 3pcs Aluminum Woodworking Rulers with Slide Stop is here.
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)).