Surprise your sister with a fun and practical gift - the Best Sister Tumbler! Sip on your favorite drinks, hot or cold, with its double insulated stainless steel design. Plus, with its 20 ounce capacity, you'll have plenty of liquid to keep you quenched all day. And don't worry, it's BPA free and includes a lid, metal straw, and straw cleaning brush. Keep your beverages cold for up to 24 hours, or hot for up to 6 hours. Just remember, it's not safe for the microwave or dishwasher.
