The Featherforged Nanotap is engineered to be the smallest, toughest, most reliable hand bicycle pump to fit in all seat post bags and jersey pockets and is created from overbuilt, full-metal machined aluminum construction to reliably function under harsh, extreme conditions. Unlike CO2 or electric pumps, it will not run out of gas or power, nor fail due to heat, cold, moisture, or an empty gas cartridge. It is designed and hand-assembled by a small team in Colorado, USA and created from components domestic and foreign. The full-metal construction is designed to be tough enough for many years of use. This pump threads onto a presta valve and does not fit a Schrader valve. It is limited to a max tire pressure of 100 PSI (6.9 Bar).