Inventure Cartridges already on sale?

I found this.

https://www.dream3d.co.uk/3d-printer-filament/zortrax-inventure-cartridges/

Haven't seen those images anywhere else, we are resellers and definitely not on the platform.

It states cartridge contains 800 g and weights 1 kg, just as traditional spool...

It is a presale and its not official weight. 

Thanks for the info Marcin, however it should be corrected because users can get wrong information.