Topeak Mini Dual DX Pump. Features: Dual pumping action pumps air both push and pull, formerly called Master Blaster SmartHead automatically adjusts to Schrader or Presta, thumb lock lever for airtight seal, padded elastomer grip Includes mounting bracket, dust cap Specifications: Length: 231mm Valve Compatibility: Presta & Schrader Max Pressure: 120 PSI Pump Type: High Pressure Gauge: - Mount: Bottle Cage Bolt Mount Material: Aluminum, Polymer Color: Black/Silver Weight: 150g