Aliexpress
Click here… to search for DANIU 150mm Steel Caliper Vernier on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. I have no active coupons for you right now.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Old coupons (from the oldest to the newest): 502C6B, 265486, BG20DANIU, BGDANIU, c2b135, 0e7f33, FBCOUPON1, BGherra
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for DANIU 150mm Steel Caliper Vernier? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).