The NEW Blackburn Mammoth Anyvalve Bicycle Frame Pump works automatically with Presta, Schrader and Dunlop valves, no twisting or resetting to do. Universal-style heads have always been overly complicated and unreliable... until now. The Blackburn AnyValve™ Head, a real game changer. With a super-clean design that utilizes highly durable materials, it will provide years of trouble-free performance. The Mammoth is a true mountain bike icon that fills fat tires quickly and painlessly. Featuring Aluminum barrel construction, Rubberized folding T-handle, and Blackburn's Lifetime Warranty.