Food-grade 18/8 stainless steel metal with no metal aftertaste. Metal straws are easy to clean, dishwasher safe, and rust proof. These reusable straws pair with tumblers, bottles, and cups in the following sizes: 20 oz, 18 oz, 12 oz, and 10 oz.
Measurements: Length - 8.5 in; Width - .2 in
Boba Straw: Length - 8.5 in; Width - .5 in