1.Upgrade design and materials-GOBKO bike pump Inner and outer tubes are made of high-strength steel,which is more wear-resistant and has a smooth surface.And the rubber tube of the portable air pump is detachable, frost-proof and high temperature resistance,Wider and Thicker Pump Base,Non-slip, easier to inflate quickly Precision engineered with top of the line grade-Dual easy indicator pump head fits both Shrader and Presta valves,so you get quick, accurate, reliable inflation before a race or workout; Great for racing teams, international competition, and cross country touring Ergonomic design-Egromically designed comfortable handle,Floor pump with easy to read gauge,Max 174 PSI / 12 Bar high pressure capacity, accurate air pressure can be displayed when inflated, making it easier to visually see and fit easily into the proper pressure prevents accidental tire blowouts Powerful & Multifunction-Includes a multi-function adapter,4 metal pin needles,2 tapered nozzlecan inflate for mountain, BMX and kids wide tires as well as the thinner, high-pressure tires found on road and commuter bikes, electric vehicles, motorcycles, air cushion, swimming ring, basketball, football, air bed, and any inflatable balls toys. Warranty:GOBKO are committed to provide excellent customer service with our UNCONDITIONAL Free Replacement or Money back guarantee for a period of 10 years