Our bicycle valve adapter set is designed to make tire inflation . The set features a variety of adapters that fit different valve types, allowing you to use any air pump with your bike. To inflate your tires, simply choose the appropriate adapter, attach it to your bike's valve, and connect your air pump. This ensures a secure fit and efficient air transfer, making it easier to keep your tires properly inflated for a . Features -Color:Multi -Material:Brass, plastic -Size:3.80X0.75X0.75cm/1.49X0.29X0.29in -Size:1.55X1.00X1.00cm/0.61X0.39X0.39in -Size:1.90X1.00X1.00cm/0.75X0.39X0.39in -Size:2.50X0.70X0.70cm/0.98X0.28X0.28in -Size:3.00X1.00X1.00cm/1.18X0.39X0.39in -Size:4.30X1.00X1.00cm/1.69X0.39X0.39in -Size:0.80X0.80X0.10cm/0.31X0.31X0.04in -Size:1.28X0.98X0.98cm/0.50X0.39X0.39in -Size:1.55X0.79X0.79cm/0.61X0.31X0.31in -Size:11.00X0.90X0.90cm/4.32X0.35X0.35in -Effortless conversion: easily changes bicycle valves to fit different adapters, simplifying the tire inflation process for cyclists -Flexible design: works with a variety of bicycle valve groups, making it a versatile tool for different cycling scenarios - : made to last, this adapter withstands longterm use, providing a reliable solution for tire inflation -Portable size: its small and lightweight design makes it easy to carry, ensuring you can address inflation issues on the go -Wide range of use: ideal for mountain bikes, road bikes, and folding bikes, this adapter is a versatile accessory for any cyclist Package list: 1 x set bicycle valve adapter kit (21pcs/set)