Featuresr lightweight and portable accessory for your biker specifically designed to optimize air flow with every pump which means minimum resistance when pumpingr you can use this pump to inflate the bike tire from flat during emergencies repair or keep the tire pressure up during the long ridesr dual action pumping and thumb lock up to 100 psi capacityr fit for fvfrench valve and avamerican valve bikesr with mounting bracket to attach the pump on the bike