500mAh Electric Pepper Salt Grinder 2pcs is for $34.99 (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
500mAh Electric Pepper Grinder in Wood Grain Color Electric Salt and Pepper Grinder Set with 6 Adjustable Coarseness Adjustable Ceramic Core with LED Light USB Rechargeable – #2
Latest coupon and price update (UTC):
Banggood ($34.99)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. Is it cheap? From what I can see this price is higher than average price ($32.99).
Link: Banggood product page
Price: $34.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG634def
(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 500mAh Electric Pepper Salt Grinder 2pcs 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)).