Review on ZHSMS Extension Extenders Stroller Motorcycle by Marklen Baeskens
Doesn't leak when you shoot.
The key feature is that when you loosen the pump from the pump side the end of the valve closes. This way you can unscrew the extension and no air escapes while you remove it. Some extensions are just a hollow tube. None of the product descriptions mention this.
Pros
- nice little thing
Cons
- will be added later
