Protective Support: Equipped with thickened support, this bike under seat pack protects internal items from being easily compressed, ensuring stays intact. Large Capacity: This portable bike tail bag is designed with ample space to hold various items such as tools and spare tires, making it convenient to carry all your essentials during rides. Organized Storage: Inside, multiple compartments allow for orderly storage of small tools, documents, coins, and other small items, this cycling seat bag keeping everything neatly organized. Water- Design: The bike saddle bag features a water- and waterproof zippers, allowing you to travel in without worry, keeping your belongings safe and dry. Quick Installation: The bicycle tail bag uses a dial strap design for fast attachment and removal, providing convenience and ease of use for cyclists . Color: Black Material: TPU Package Contents: 1 x Bike Saddle Bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.