High-Quality Brush: The Water Bottle Cleaning Brush Is Made Of High-Quality Stainless Steel And Durable Nylon Material, Which Is Comfortable And Durable, Harmless To The Human Body, And Will Not Leave Scratches On The Bottle | | Anti-Slip Extended Handle: The Rubber-Covered Handle And Ergonomic Groove Design Have Anti-Slip Function. The 12.2 Inch Extended Cleaning Brush Design Can Easily Reach The Bottom Of The Bottle, And Deep Cleaning Can Be Done Easily | | 360-Degree Cleaning: The Full-Coverage Bristles Can Achieve 360-Degree Cleaning Without Dead Ends, And The Flexible Brush Can Easily Extend Into The Narrow-Mouth Bottle. Whether It Is Turned Clockwise Or Counterclockwise, Our Water Bottle Cleaning Brush Can Clean Quickly | | Easy To Hang: The Handle Of The Water Bottle Cleaning Brush Has A Hanging Hole Design, Which Can Hang Them On Hook For Drying When It Is Not Needed For Easy Storage. The Two Devices Can Be Replaced At Any Time | | Multi-Function: Brush.