Topeak SmartHead Bicycle Floor Pump Upgrade Kit
Upgrade any existing bicycle pump by adding this SmartHead kit, which replaces your old or worn-out pump hose and head. SmartHead technology ensures that the adapter will work on both Presta and Schrader valves without requiring you to change any parts or buy two separate adapters. Plus, it's easy to install, with an aluminum thumb-lock lever that creates an airtight seal over the valve. The SmartHead measures 41.7 by 1.1 by 1.9  inches and 0.3 pounds.