Detachable Head with Cleaning Brush,High quality, 304 stainless steel An aesthetically pleasing bead(Yellow) in the middle of the handle, makes the straw easy to hold when drinking Length: 21 cm / 8.27 inch; Filter Diameter: 3 cm / 1.18 inch Easy to clean, spiral head of the straw can be opened, you can use the cleaning brush to clean the straw easily Great for yerba mate, loose leaf tea, freshly ground coffee, Fruit juices and other drinks