I have checked all old coupons and price is 12.99 USD for 3pcs Aluminum Alloy Precision Pocket Ruler (in Banggood). Check coupons or create price alert down below. You probably want to know what is the best price?
Latest price update (UTC time):
Banggood (12.99 USD)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. Good or bad price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal 12.49 USD)
Link: Banggood product page
Price: 12.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
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:
Coupon (27.5.2024, $8.66): BGafd493
Item: 3pcs Aluminum Alloy Precision Pocket Ruler
Countries: Spain
Old coupons (from the oldest to the newest): BG4b7c47, BG7acc17, BGf74553, BG4f0070, BGDBI044, BG6e5da5
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for 3pcs Aluminum Alloy Precision Pocket Ruler is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).