YESSS! These leak-proof flip straw lids are here to save the day! No more spills with your favorite cup! Perfect fit for your 40oz Stanley tumbler, and they come in super cute colors, too. Now you can sip on the go without the mess! Grab this 2-pack for just $7.49 (reg. $14.99) when you go through this link! Discount will be automatically applied at checkout, not in the cart! Love, Jess