I don’t understand why Stanley’s don’t just come with these kids anyway 🤦🏼‍♀️ but if you want to make your tumblers leak proof and still have a straw these are a must! They come in 30 and 40oz and different colors! Follow first & comment “SHOP” for a direct link! 🔗 amazonfinds amazondeals amazonprime amazonmusthaves amazonhomefinds amazonhack amazongadgets