$12.69 – Quantity 10pcs of each 80g / 120g / 140g / 600g / 1000g / 1500g / 3000g / 5000g and 20pcs 400g / total 100pcs, Shank 50x3mm/2”x0.11”, Sanding disc 1” (25mm), Loop Sanding Pad 1” (25mm).
The coupon price for 100pcs 25mm 80-5000 Grit Sanding Paper with 1/8 Inch Pad is $12.69 (in Banggood). Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood ($12.69)
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood). What about the price? From what I can see this price is higher than average price ($6.99).
Link: Banggood product page
Price: $12.69
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGGines, BG75cb17, BGTools8, BGTACC18, BG85053c, BG589b2e, BG03c81a, BGHTT15, BGb069cc, BG20236Tool
(you can check these old coupons out, but these probably won’t work)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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 100pcs 25mm 80-5000 Grit Sanding Paper with 1/8 Inch Pad. The lowest price was: $4.99.
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)).