Bicycle Bike Cycle Tyre Tube Replacement Presta Dual Head Air Pump Adapter Valve Item description Material: plastic Dimensione: ca. 6.5x4 cm/2.55 " x 1.57 " (L x W) This Beto Replacement Pump Head comes with a versatile dual valve design so can inflate Presta or Schrader tubes with ease Package Included: 1 x valve pump adapter