The Shiny Object CO2 inflator is pretty compact durable and easy to use. What more could one want? The alloy body is sleek and elegant as well as small light and durable. Its control knob makes CO2 regulation a breeze. The full grain leather cartridge sleeve is durable and keeps your fingers from freezing when CO2 is released. The sleeve is vegetable tanned and conditioned with natural oils and waxes. Fits both presta and schrader valves. Includes one threaded CO2 cartridge.Note Ground …