6x Xiaomi Clean-n-Fresh Deodorant Shoe Balls (Banggood, Aliexpress: Tea polyphenol deodorant, Size 39mm, Color White and Orange, A deodorant shoe ball can last for about 45 days (the best price with coupon)).
You can create price alert here, copy coupons and view price history. What is the best price?
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.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
1. ($18.55): BGHome15%
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): aff7off, vipupgrade8, TTxBG10, bgssaff9, AFfbG10, 502C6B, BGBGHFRI15, 0e7f33, FBCOUPON1, BGHOMEA15%
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for 6x Xiaomi Clean-n-Fresh Deodorant Shoe Balls. The lowest price was: $8.89.
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)).