【Perfect Fit】This spill proof replaceable tumbler flip straw lid designed for Stanley 30 oz tumblers, including Stanley Quencher ProTour，Stanley Adventure Quencher Travel, Stanley H2.0 FlowState tumblers.
This product would be ideal for people who frequently use flip-style straws or tumblers but have replaced the existing lids that are no longer holding securely, ensuring leak-proof and spill-proof use.
