will_paginate customisation

You can use :page_links => false

    # ==== Options
    # Display options:
    # * <tt>:previous_label</tt> -- default: "« Previous" (this parameter is called <tt>:prev_label</tt> in versions <b>2.3.2</b> and older!)
    # * <tt>:next_label</tt> -- default: "Next »"
    # * <tt>:page_links</tt> -- when false, only previous/next links are rendered (default: true)
    # * <tt>:inner_window</tt> -- how many links are shown around the current page (default: 4)
    # * <tt>:outer_window</tt> -- how many links are around the first and the last page (default: 1)
    # * <tt>:separator</tt> -- string separator for page HTML elements (default: single space)