The best tumbler straw set ever. Corkcicle s stainless steel tumbler straw is the coolest accessory for those who want to sip in style. The reusable tumbler straws fit perfectly into 16oz and 24oz Tumbler and have a curved opening for maximum sipping comfort. Now, every 2-pack tumbler straw comes with a wire cleaner to keep them as fresh and clean on the inside as they are on the outside.