Engineered to fit the most popular reusable straws, the Straw Shark is compatible with both generic and brand-name offerings, including those from Stanley, Yeti, Hydro Flask, and Owala.

This patent-pending design cleans straw interiors as small as 4 mm and fits straws up to 11 mm in outer diameter, handling virtually every drinking straw short of oversized jumbo boba straws. Both brushes are flexible and glide smoothly through bends and curves.

For best results, use with dish soap and water to help the brush glide smoothly and clean thoroughly every time.