Aliexpress
Click here… to search for 30kg Dumbbell Weight Set [EU] on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. I can’t tell you if this price is good – not enough records in my database, so I won’t judge.
Link: Banggood product page
Coupon (57.03 USD): BG8OFFCOUPON
Coupon (58.27 USD): BG00c906
(CouponsFromChina.com tip: apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG8ec602, BG8fcd54, 2022ACTIESNL, BGFitness, BGFT666, BG787e9e, Cuponation9, BG5cd4bb
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
It’s a new item in our database, so I can’t create price history chart. We have saved this price in database: 19.99 USD.
You can set price alert (for Banggood).