Use these mock ups for any project you want, personal or commercial. No need for any attribution. Though it will be highly appreciate that you help me grow by spreading my contribution to our world.

Do not sell this products or resell it to any medium. That will be copyright infringement and you can face legal action if you sell or re-sell these mock up to any platform or sites or personal medium. Just use it for free to making mock-up images on any purpose.