Here is an extract taken from the sql server helpfile, this will answer your question....
Object Properties (Permissions Tab)
Use this tab to view or specify the following options.
Options
Object
Specify the name of the object.
List all users/user-defined database roles/public
List all users and database roles for the selected database. Click the appropriate box to modify object permissions.
List only users/user-defined database roles/public with permissions on this object
List only users or database roles that already have permissions on the object. Click the appropriate box to modify database user permissions.
User/Database roles/public
View the user ID or database role.
SELECT
Grant, revoke, or deny SELECT permissions on this object.
INSERT
Grant, revoke, or deny INSERT permissions on this object.
UPDATE
Grant, revoke, or deny UPDATE permissions on this object.
DELETE
Grant, revoke, or deny DELETE permissions on this object.
EXEC
Grant, revoke, or deny EXECUTE permissions on this object.
DRI
Grant, revoke, or deny declarative referential integrity permissions on this object.
Columns
Display the Column Permissions dialog box, where you can manage permissions for each column.
