1. Easy Installation: Each includes everything you need to mount the bottle holder. The package contains 1 bottle holder adapter, 3 sturdy cable ties, and 1 Allen key. No additional tools are required for tool installation. There's no need to drill holes into the bike rack, ensuring your bicycle remains undamaged. 2. Quality Assurance Through Material: The bottle holder features a quality steelsilicone combination. The steel provides stability, while the silicone offers a nonslip grip and protects the bike frame from scratches. Thanks to the silicone composition, the holder stays securely in place without damaging the frame. 3. Universality and Adjustability: The bottle holder's design is universal and adaptable, fitting most bicycle types. The adjustable buckle allows you to modify the strap opening as needed. The universal adapter enables installation at various points on the bike. The maximum applicable circumference of the bike rack is 230 mm, with a diameter of 73 mm. 4. Versatile Application: This bottle holder is suitable for all cyclists, whether for city commuting, mountain biking, or longdistance tours. It ensures a secure hold for water bottles and prevents frame damage. Additionally, it can be installed on ebikes of compatible size or in other suitable locations.