When you open Amazon's website to search for products, Amazon's front address is set to China, which is beyond Amazon's distribution range, so it is out of stock; Amazon system problem, after excluding the first case, still shows that it is out of stock. You can open a case in Amazon backstage and ask the seller for support to check whether it is a system problem.
Ozon is one of the earliest e-commerce companies in Russia and is called "Amazon of Russia". The platform SKU exceeds 5 million, mainly selling books, electronic products, music, movies and so on online. It is the largest multi-category integrated e-commerce platform in the Russian market.