Features1\u3001Hard Shell Protection: Made with EVA material, the hard shell effectively resists impacts and protects your gear from damage.2\u3001Waterproof Design: Pressure-sealed seams ensure your belongings stay dry in rainy conditions.3\u3001Quick \u0026amp; Easy Installation: With a sturdy mounting bracket, installation is a breeze and can be done in seconds.4\u3001Reflective Tail Light Mount: Enhances visibility during night rides, keeping you safe on the road.5\u3001Spacious \u0026amp; Organized: Multiple compartments and side pockets offer ample storage and easy access to essentials.Material: EVA Hard ShellCapacity: High Capacity for Tools, Repair Kit, SnacksDimensions: 11.5cm x 20cm x 12cm \/ 4.5in x 7.9in x 4.7inWeight: 215g \/ 7.58ozPackage List1x Mountain Bike Tail Bag