Handpresso Outdoor Espresso Set No Co2 cartridges needed so there is no waste and never run of out pressure simple design for dependability and you never run out of pressure and you can take it on a plane The Outdoor set is made of thermo-formed extreme vibration attenuation designed to withstand 50psi the set includes everything you need Four light weight espresso cups which are great for travel and keep you espresso hot and two handpresso napkins Thermal carafe allows you take your espresso anywhere Uses ESE sized pods such as starbucks, illy, lavazza, gaggia etc.