Espresso Strap has been designed to secure Espresso or Espresso Doppio to a bicycle, independently from frame/tubes shapes and sizes. It turned out it can be used to securely fasten any small cylindric object (pumps, CO2 cartridges…) to a bicycle stem or seatpost, or to other small frame tubes.
Thanks to the soft rubber element and to the strong velcro strap, unwanted cartridge release is virtually impossible.
The totally reliable clamping comes with a weight of just 20 g.