Bottle cover brushes: lightweight and portable for outdoor travel. Take them along without worry and use them to clean cups on the go. Water bottle brush: detachable tip for flexible use. Reusable and designed for long service life to offer reliable cleaning. Water bottle scrub brush: cleans without damaging your cups and bottles, leaving surfaces smooth. Practical and dependable for everyday bottle cleaning. Brush for bottle: hanging design with a tail hook for easy storage. Convenient, multifunction cleaning brush that fits in tight spaces. Use scenarios: While traveling or hiking, use the bottle brush or scrub brush to clean water bottles and cups after use, keeping your gear ready for the next day. At the gym or during work breaks, quickly refresh sports bottles and cups with the detachable tip brush for a clean, readytouse bottle. At home or in the office, store the brush easily using the hanging hook and rely on its multifunction cleaning capability for routine bottle and cup maintenance.