All freely shared Chocofur Store products are released under the Creative Commons 0 License (otherwise called CC0 License). That means you're allowed to download, modify and re-distribute these products without any limitations. That includes free, non-profit, and commercial uses. You can even re-sell these products, or their elements such as textures, if you want. It would be great if you could give Chocofur a credit when using our freely shared assets, but that's also not obligatory.
CC0 enables scientists, educators, artists and other creators and owners of copyright - or database - protected content to waive those interests in their works and thereby place them as completely as possible in the public domain, so that others may freely build upon, enhance and reuse the works for any purposes without restriction under copyright or database law.