Rechargeable No Charge Required / Mechanical Structure, Main Material ABS Environmental Plastic, Product Weight 97g, Age of Use 6 or Above, Name Giiker Magnetic Cube M3, Dimension 56.5x 56.5x 56.5mm, Brand Giiker (Xiaomi ecological chain).
Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
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 price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. There’s only 1 record in my database, so I have no idea if the price is OK.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): 25Giiker, 502C6B, TTxBG10, e901a6, BGss15%ls, BGGiikerM3es, BGLAB, TS15prime, TISPrime01, Tools1, Tools3, BGDH16, BG2020NS, BGTools65, BGc9b7, 13f142, bGhOnEy10, BGJP5812, BG2c5bs, bgshOOp10, BgoFErTaSchInA10, BGLab18, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10, BGHONEY2110, BGLAB61, BG49c541, BGLab21, BGHU1005, BANGGOODSD, 00c906, 2203ActiesNL
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Xiaomi Giiker M3 Magnetic Cube ($-3)
Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was $17.99).
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)).