👍EASY TO INSTALL: Adjustable hook and loop design, suit for more size MTB road bikes. Install and release the top tube bag quickly and without any tools. 👍HUMANIZATION DESIGN: A. Big zippered opening mouth design for easy access. Durable zipper closure. B. Reasonable size, it would not rubs against your legs while riding. C. Reflective trim of bags to keep your night ride safety. D. Slim body design with high capacity to minimize the wind resistance. E. Free money back and 100% satisfied customer service. 👍DURABLE & STEADY: The main material EVA and Polyester nylon can be highly abrasion proof and durable. Stiff sidewalls help the bag retain its shape, would be very steady. Don't worry about deformation. 👍LARGE CAPACITY: The bike frame bag is big enough to store your wallet, energy gel, inner tube, mobile phone, gloves, repair bike tool, power bank and so on. Size: 20*10*9cm, Inside Space about 19*9*7.5cm/1.5L capacity ; Fit 6.5 inches phone Weight: 115g Fixed form : Steady three magic straps. 👍MUlTI-PURPOSE BAG:Can replace Bike Top Tube Bag-Bicycle Front Frame Bag-Waterproof Bike Pouch Pack-Bike Storage Bag-Bike Triangle Frame Bag-Bikepacking Bag.