【Comprehensive categories to meet all your needs】Suitable for all bicycle pump valves. Whatever type can be converted.High quality brass material - prevents leaks. The valve adapter is made of high quality solid brass and is durable. And it has a precision thread for attaching to an air pump. The rubber O-rings are firmly attached to ensure a good airtight seal and prevent leakage during use. 【Ultralight and compact】This mini pocket pack valve adapter can be easily taken with you when traveling. It takes up very little space so you always be prepared. It fits easily in your bag or pocket. 【Widely used】The bicycle valve adapter is suitable for mountain bikes, road bikes, wheelchairs, children's vehicles, etc. It is also equipped with a ball needle for inflating the ball, a motorboat mouth for inflating the ball and a swimming ring, a set that can solve all your worries