Name: Bicycle seat bag Colour: Black Size: 20*10*9cm Weight: 205g Features: hard shell, water-repellent, quick release buckle, durable and wear-resistant, internal layering Storage Space: This bag has storage space, which can hold some essentials, such as mobile phone, keys, wallet and so on. These items can be easily taken out or put in the bag at any time. Waterproof function: This car bag is made of waterproof material, which can effectively protect the contents of the bag from rain. This is very useful for unexpected rainy days while riding. Easy to Install: This car bag can be easily installed on the car. This will not interfere with riding and is also convenient and fast. Overall, it is a very practical accessory that can provide convenience and safety while meeting the various needs of the rider during the ride.