The Last Straw is a patent pending, unique reusable straw! It does not require a cleaning brush! It comes completely apart, for cleaning, preventing mold and bacteria buildup! It also prevents interlocking, INVISIBLE moisture bacteria because it can dry thoroughly, while separated. It is the ONLY reusable straw that exists like it and FDA approved, BPA free! We have multiple sizes and multiple, fun interchangeable colors. People refer to The Last Straw as genius! The ONLY true visibly clean, healthy straw to own!