Where is Pixels available?

Could you please elaborate on the availability of Pixels? I'm particularly interested in knowing where it's accessible, whether it's a physical product or a digital service, and if there are any geographical restrictions. Additionally, I'd like to understand if there are specific platforms or marketplaces where Pixels can be purchased or accessed. Is it widely available or limited to certain regions or user groups? Providing details about the accessibility of Pixels would be extremely helpful for potential users to determine if they can gain access to it.