Never be caught out on a ride again thanks to this handy Mini Twist Inflator. Every last detail is thought out, including a bulged design around the sides of the sides of the inflator head to allow a bit more room to operate with gloved fingers. Includes a protective rubber sleeve that covers the CO2 cartridge and provides a no-slip grip when inflating. The presta compatible chuck seals firmly and inflates confidently. Includes one 16 gram cartridge.