The textures showed here in the promo page are just examples of what each action can accomplish. The actual product lets you make infinite textures.
This is a Photoshop action set that comes with 3 actions that make textures out of nothing.
You simply create a new image (any size you want), choose a foreground and a background color and play the action of your choice. You now have a texture!
Not only will your texture change when you choose different colors, even if you hit the play button again you will get a different texture (with the same look, of course, but different nonetheless).
The fact that these are actions and not bitmap textures makes it possible for you to choose your image size and resolution.
You can use them to make backgrounds for renders, 3D model textures, backgrounds, textures, web designs, banners, and everything you can think of.
You can even combine the resulting textures with layer blending modes to make even more different textures. The possibilities are endless.