Dear
i want to setting for user permission to see description of the item. i mean :
They can see the K2 item and title in home page and when click they should login to see all description , i want to membership of the website.

Please can you help me how to config or is should use another plugin or k2 madule

Thank you

Please read this post:
www.joomlaworks.net/forum/k2-en/37670-solved-premium-content-items-invisible-if-not-logged-in