Pigeon Straw Brush 4-Piece Set - Perfect for Cleaning Straws and Bottles - Brand: Pigeon - Product Name: Straw Brush - Purpose: For cleaning straws and bottles Thank you for viewing. I always bought these in bulk because they are so easy to use, but I am selling them because I no longer use a straw water bottle. [I found that they are often sold for around 500 yen per brush, but I'd like to sell them as a set, so I'm offering them at this price.]