TPS Push Tab Reversible Cap Vials This is one of the most consumer-friendly vials on the market! The functional design converts from Child-Resistant to easy-open with a mere flip of the cap. In Child-Resistant mode, simply push down on the thumb tab and turn to open. The quality engineered cap meets all Child-Resistant protocols. Turn it over for a threaded, Non-Child Resistant, screw-on closure. Other features include: