The Blackburn Mammoth Anyvalve Mini-Pump is specifically designed to push more air per stroke, saving energy that you might need for riding. Essential for your off-road adventures, this pump produces a hurricane force air blast with its high-volume barrel. The Blackburn Mammoth Anyvalve Mini-Pump features an oversized design, made from strong and lightweight aluminum, that delivers more air per stroke so you can get back on the trail quickly.