The Blackburn Core Mini Bike Pump is made to be used. This pump is designed with a retractable, thread-on hose that puts less stress on the valve. It has a presta-only thread on head with Presta valve tool that sits on a short pull-out hose to give you more options to position the pump. This pump has a large diameter barrel thats perfect to inflate larger volume MTB tires in no-time flat! The Blackburn Core Mini Bike Pump is small and powerful making it a must have for your next trail adventure.