The Topeak Mini Master Blaster DX Pump is a great little pump that packs a powerful punch! The stylish Mini Master Blaster DX Pump features Topeak-s award winning SmartHead which automatically adjusts to fit Presta or Schrader. It features a padded ergo-fit handle for comfort and a very solid Thumblock lever for an airtight seal. Inflates effortlessly to 120psi! Includes a mounting bracket to fit on your bike frame, and a dust cap to keep everything clean and working smoothly.