The topeak joe blow maxx ii track pump is a great value floor pump with long hose and wide stable plastic base featuring an oversized steel barrel and durable engineering grade composite base and a twinhead connector for presta schrader and dunlop valves no switching of washers necessary it has a handy composite thumb lock lever for an airtight seal and an easy to read gauge with pressure indicator dial reads to 120psi and finally for your comfort a padded elastomer grip includes b