The Topeak Fastfuel toploader is perfect for cyclists who want to keep their snacks, phone, and other small items close at hand. A simple zipper makes it easy to retrieve items while riding. The bag also has a cable port on the front, allowing you to charge your bike navigation system with a power bank inside. The bag can be attached to the frame's top tube with screws or the included strap. The strap is made of a material that won't scratch your frame. The bag has a zippered closure and one 0.5-liter compartment. Its dimensions are 18.7 x 8.2 x 4 cm. Specifications: - Brand: Topeak - Primary base color: Black - Type: FastFuel Tribag - Weatherproof: Water-repellent - Raincover included: No - Width in cm: 10 - Height in cm: 18 - Bag material: Polyester - Depth: 5 - Volume in liters: up to 5 liters - Accessory mounting system: Other - Mounts on the frame's top tube with integrated mounting points Option 2 - Tires on the frame's top tube TOP TUBE DIAMETER: Fits Ø35 - Ø50 mm - DIMENSIONS: 18.7 x 8.2 x 4 cm / 7.4 x 3.2 x 1.6 - WEIGHT: 70 g / 2.47 oz - ADDITIONAL FEATURE: Safe, scratch-free tires