BOLANY 1Pair Mountain Bike Tubeless Air Valve Stem Presta Extender Set
- The silicone material has significant rust and corrosion resistance, and is strong and durable.
- Suitable for most mountain bike, strong practicability and high performance.
- Compact size, small and lightweight, easy to carry, does not take up space, reliable body.
- High quality aluminum alloy material, durable, sturdy and has a long service life.
- Enlarged base, high air density, good sealing, quality assurance, no air leakage.
