Larger capacity recommended for mountain, city and larger tire bikes. All CNC machined aluminum construction with an anodized high-polish finish. Quick and easy inflation. Telescopic barrel provides a high volume of air with each stroke. Ultra compact and lightweight it easily fits in a bag or jersey pocket. 18cm when folded, 38cm when open. Fits Presta and Schrader valves. Mounting bracket for secure attachment to water bottle bosses. 80psi capacity. Supplied on hang card for display.