| 
   
    <%= label_tag :user_to_keep, "User to Keep" %> 
  
<%= collection_select(:user, :to_keep, @users, :id, :name_with_email_and_visibility, :include_blank => true) %>  | 
◀◀ | 
   
    <%= label_tag :user_to_merge, "User to Merge" %> 
  
<%= collection_select(:user, :to_merge, @users, :id, :name_with_email_and_visibility, :include_blank => true) %>  |