Topeak Mini Dual Pump. Features: Dual pumping action pumps air both push and pull, formerly called Master Blaster Dual head converts between Schrader and Presta, thumb lock lever for airtight seal, padded elastomer grip Includes mounting bracket and dust cap Specifications: Length: 274mm Valve Compatibility: Presta, Schrader, & Dunlop Max Pressure: 120 PSI Pump Type: High Pressure Gauge: - Mount: Bottle Cage Bolt Mount Material: Aluminum Color: Silver/Black Weight: 148g