- This lightweight mini pump weighs only 51 g and has an extremely small length of just 160 mm while providing a large pumping volume. - It is easy to carry in a jersey pocket. - The dual-chamber technology allows for a volume of 30 ml of air per stroke. - It is hose-free and user-friendly thanks to the specially designed snap-on pump head. - The housing and shaft made from aluminum ensure optimal durability while remaining lightweight.