BicycleStore Waterproof Triangle Bike Bicycle Frame Front Tube Pouch Bag Outdoor Sports 1.5L Velcro strap design,easy to install and remove. You can carry tools and other small essentials in the this triangle frame bag. Water resistant.It adopts waterproof material, solid and durable. It has 3 velcro straps,making it suitable for a variety of bicycles. Material:600D polyester.Capacity:1.5L.Suitable for any bicycle.