Product Details: Brand: ROCKBROS Product Name: Bicycle Bag Material: PC Dimensions: approx. 20x9x14 cm Bag Weight: approx. 48 g Accessories Weight: approx. 94 g Color: White Capacity: approx. 1.9 L Features: Includes Mounting Accessories: The bike bag comes with mounting accessories suitable for certain models, such as Brompton and some other folding bikes. The distance between mounting holes is about 2.6 cm. Please ensure the frame hole spacing is compatible before purchasing. PC Material: The bike bag is made from a PC hard-shell material, which is not only scratch-resistant and wear-resistant but also easy to clean. Medium Capacity: 1.9 L practical capacity with a sensible internal layout, providing space for wallets, keys, maintenance tools, and other essential cycling accessories, meeting storage needs for daily riding and short trips. Prevents Items from Falling Out Easily: The large opening design of the bag facilitates easy retrieval of items. At the same time, both sides of the bike bag feature guardrails to prevent items from falling out. Waterproof Zipper: The zipper is not only smooth for easy access but also waterproof. Installation Steps: Ensure all accessories are complete. Confirm the frame section with mounting holes. Insert washers, spacers, and screws into the mounting accessories. Attach the mounting kit to the frame. Insert the mounting clips. Tighten the mounting clips. Install the bike bag, and the installation is complete.