Fanttik X10 Ace Tiny Mini Electric Bike Pump ENVEMARCH Brass Key sizes are defined

Brass Key sizes are defined by the number of lines on the key

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e-MTB optimised

neck groove that helps cages keep the bottle in place and it's totally leak-proof whether mounted vertically or horizontally

Fanttik X10 Ace Tiny Mini Electric Bike Pump ENVEMARCH Brass Key sizes are definedPocket Bicycle Pump Fanttik X10 Ace Tiny Mini Bike Pump with an ultra compact size, fast fill and exact pressure, you no longer have to worry about underinflated tires while riding. It's perfect for serious cyclists who demand fast inflation and high precision (0. 1 PSI accuracy), as well as for casual cyclists who value its compact and user friendly design; it also makes a great gift for your cycling enthusiast friends. Tiny But Mighty Built for