Lezyne Steel Digital Drive Floor Pump Long travel Piston with reduced barrel and base decreases the exertion required to reach optimal tire pressure Innovative abs-2 chuck quickly and securely clamps to Presta or Schrader valves and features the air bleed system button for easy pressure tuning Quick release abs-2 chuck design allows for Rapid disengagement Extra long, nylon-reinforced braided hose with aluminum couplers easily reach both Presta and Schrader valves