Universal Fit: This valve tool conveniently converts your bicycle or e-scooter Presta valve to Schrader, allowing you to inflate tires with a standard pump or air compressor. Be prepared! This 5-pack offers peace of mind while cycling long and short distances. Universal fit for all bicycle tires with Presta valves including children's and adult mountain bikes, drift trikes, e-bikes, e-mops and e-motorcycles. Use Gas Station Pumps: Forgot to inflate your tires before you ride? Pop into any gas station and blow up fast. This valve adapter allows you to easily pump a bicycle tube with a Schrader valve at a gas station, even if no hand pump (or CO2 cartridge) is available. Avoid wheel damage, pinch flat shoes and prevent uneven tire wear due to cycling with low pressure tires. Simply screw on the adapter to inflate or check your tire pressure, it couldn't be easier. High Quality Brass: Made with high quality solid brass, this electric motorcycle valve adapter is built to hold precision threads to secure an air pump. The rubber O-ring seals have a tight fit that prevents leaks during use. Supplied with 5 caps for Presta Valves and 5 caps for Schrader valves. Small and compact: This pocket-sized Presta valve adapter can easily be taken with you on your travels, the adapter can even be left on the tire stem so you're always prepared. Fits comfortably in your suitcase or sweater. Works equally well with electric or scooters as well as racing bikes.