[High-quality materials] The bicycle accessories are made of high-quality copper and plastic material for extremely high corrosion resistance and durability. After long-term use, the color remains unchanged. This set will be your long-term companion thanks to high-quality craftsmanship. [Easy to store] This bicycle adapter air pump is placed in a storage case, the bicycle valve adapter is easy to carry during travel and saves storage space in the bicycle emergency equipment, they can not guarantee that you will not find the remaining valve adapter after use. [Easy installation] The DV - AV - SV adapter is easy to carry, practical, easy to install and easy to use. It is also possible to tighten and pump the cart pump and inflate the compressor. In this way, they can use a floor pump or compressor to inflate their tires and pumps. [All power] The 30-piece air pump adapter set is suitable for all common valves, including car valve adapters (AV), French valve adapters (SV) and Dunlop valve adapters (DV). It can also be used as an air pump adapter or compressor adapter, or even to inflate a ball or air cushion. [Wide Application] The bicycle valve adapter is suitable for all common types of valves, mountain bikes, road bikes and fitness bikes with valve tubes. In addition to the bicycle adapter set, you also get 2 adapters for inflating balls, air cushions, inflatable pools, etc.