1. Material: aluminum alloy sponge
2. Application: threaded carbon dioxide cylinder
3. Weight: 25g (without gas cylinder)
4. Size: 11.4x3.5cm
5. Application: road bikes, mountain bikes
6. Features: fast inflation, anti-freeze protection, easy inflation, universal use of American and French mouths, no buttons required, controllable exhaust, compact and portable
7. Product list: Inflatable head protective cover, without gas cylinder