A. This bicycle storage bag is specially designed for cycling enthusiasts. It is made of EVA material, which combines durability and portability, allowing you to ride without any burden. B. The unique design of the hard-shell double sides is not only fashionable and attractive in appearance but also adds a unique charm to your bicycle. It has a reasonable size of 20x17x17 cm and an internal volume that is sufficient to hold the essential items you need for cycling. C. There is a lining inside the bag, which can better protect the items you place. Whether it's a mobile phone, keys, or other small items, they can be properly placed. In addition, it supports touch screen operation, making it convenient for you to check your phone information at any time during your ride. D. Whether you are going for a mountain bike ride or an everyday city ride, this front beam mountain bike bag can be your considerate storage partner, adding convenience and beauty to your cycling journey.