Includes: (2) Boston valves that will fit all Boston valve-equipped inflatables. Cap has a square base, which is easier to turn, especially with wet hands. Use the Schrader valve to inflate your inflatables at a gas station or with an air compressor. Alternatively, screw off the Schrader valve and inflate the Boston valve with an Airhead air pump. All components are bright red and green, so they’re easy to find.