Size:190mm x 7mm Why Choose Alink Cleaning Brush? ? 7mm diameter brush head, perfect for nomal drinking straw and water bottle straws. ? Made of 18-8 food grade 304 stainless steel ? 190mm length overall, 55mm spiral brush head ? BPA free and use easily ? Come with 1 durable gfit plastic bag Alink Straw Cleaner is the handiest tool for reusable straw owners, making washing out straws a breeze. Made of high-quality, durable stainless steel with nylon bristles. Perfect for cleaning our stainless steel and glass straws. Rinses and cleans easily. Suitable for cleaning inside Glass Straws or any thing with a small opening, these straw cleaners work perfectly with our Classic and Smoothie Straws. We recommend thoroughly cleaning your new Straw Cleaners with soap and water before use. Particles rinse away easily with water, thanks to its simple design with well spaced bristles. Your Straw Cleaner should be dried well after each use and stored in a dry place.