Our long straws are designed for Quart (32oz) and Pint & Half (24oz) Mason jars, but they also work great for any other tall cups or large glasses. Ideal for smoothies, yogurt, milk shakes, protein shakes, or drinking water fast. The 9.5mm outside diameter fits most of our straw hole lids, but is too thick for some. We recommend a thick straw cleaner, but they are also dishwasher safe. Our 9″ long, 9.5mm outside diameter stainless steel straws fit in some of our straw hole lids and are perfect for drinking thicker beverages like smoothies, yogurt, or shakes. They feature our fabulous logo and they have threads engraved to resemble a plastic straw. For juice, iced tea, coffee, soda, etc, most people prefer a thinner straw. But you can certainly drink any liquid through them! Mason jar straw hole lids can have different sized holes, so be sure to double check that your straws and lids are compatible.